Use mainstream AI models commonly available in China and abroad Helped me calculate the stock return.
Chinese offerings include DeepSeek, Tongyi Qianwen, iFlytek Spark, ByteDance Doubao, Kimi, Tencent Yuanbao, ERNIE Bot, Zhipu Qingyan, Baichuan AI, 360 Zhinao, Tiangong AI, and SenseChat.
Those from outside China include GPT-4o、Claude-3-Opus 、Gemini-2.0-Pro, Grok.
Posing the question
Help me calculate my stock profit. The brokerage commission is 0.015%, with a minimum of 5 yuan. The stock is Super Telecom, its ticker is 603322, the purchase price was 42.76, the quantity was 300 shares, and the sale price was 43.02
Test conclusions
Manually calculated actual stock return: 54.836 Click to view the actual stock investment return
Correct AI calculation results (1):
DeepSeek (54.83)
Incorrect AI calculation results(15):
Tongyi Qianwen (55.094)、iFLYTEK Spark(55.094), ByteDance’s Doubao(55.094)、GPT-4o(55.09)
Claude-3-Opus(58)
Kimi(68)、Tencent Yuanbao(68)、文心一言(68), 智普清言 (Zhipu Qingyan)(68), Baichuan Intelligence(68), Gemini-2.0-Pro(68)、Grok (68), 360 Zhinao (68), 商汤商量 (Shang Tang; discuss)(68)
Tiangong AI(39.4)
AI Answer
DeepSeek

All right, I now need to help the user calculate their stock trading profit, so first I need to clarify the various fees. The user bought 300 shares at 42.76 and sold at 43.02. The commission rate is 0.015%, with a minimum of 5 yuan. First, I need to calculate the buying and selling commissions, as well as stamp duty and transfer fees. However, the user may not be very familiar with the specific charges, such as the rates for stamp duty and transfer fees, so these need to be confirmed first.
First, calculate the total purchase amount. Multiplying the purchase price of 42.76 by 300 shares gives 12828 yuan. The purchase commission is 0.015%, so 12828 multiplied by 0.00015 equals 1.9242 yuan, but the minimum is 5 yuan, so the purchase commission is calculated as 5 yuan. The user may not know about the minimum commission rule, so it needs to be explained clearly.
Next is the total sale amount: 43.02 multiplied by 300 shares is 12906 yuan. The selling commission is also calculated at 0.015%: 12906 multiplied by 0.00015 is 1.9359 yuan, again below 5 yuan, so the selling commission is also 5 yuan. Then there is stamp duty on the sale, currently 0.1%, so 12906 multiplied by 0.001 equals 12.91 yuan. There is also a transfer fee, currently 0.001% for A-shares, payable by both buyer and seller, but perhaps only the seller is charged? Or are both sides charged? This needs confirmation. Assuming it is charged on both sides, it is charged once on purchase and once on sale. The purchase transfer fee is 12828 multiplied by 0.00001, equaling 0.12828 yuan; on sale, it is 12906 multiplied by 0.00001, equaling 0.12906 yuan, though it may usually be rounded to 0.13 yuan. However, some brokers may waive transfer fees or impose a minimum charge, such as 0.1 yuan. Adjustments may be needed based on the actual circumstances. This may require further verification, but under the usual assumptions, if the transfer fee is 0.001% charged on both sides, the purchase and sale fees would each be approximately 0.13 yuan. In practice, the calculation may use two decimal places, giving 0.13 yuan on purchase and 0.13 yuan on sale.
Next, calculate the total fees: purchase commission of 5 yuan, sale commission of 5 yuan, stamp duty of 12.91 yuan, purchase transfer fee of 0.13 yuan and sale transfer fee of 0.13 yuan. The total fees are 5+5+12.91+0.13+0.13=23.17 yuan.
Then subtract the purchase amount from the sale amount: 12906 - 12828 = 78 yuan in gross profit. After subtracting total fees of 23.17 yuan, the net profit is 78 -23.17=54.83 yuan. By this calculation, the user earned approximately 54.83 yuan. However, note that the result may differ slightly if the transfer fee is calculated differently or there are other fees. Also, the user may not have mentioned the transfer fee, so should this be taken into account? Or does the user’s market charge a transfer fee? For example, is the current A-share transfer fee 0.001%? I remember it was adjusted before; it may now be 0.01‰, which is 0.001%, so that is correct. It should be included. If the user is unfamiliar with these fees, the basis for each fee may need to be explained clearly. Also, stamp duty is charged only when selling, and this needs to be confirmed as correct. So the final result should be correct.
All right, let's calculate your stock return step by step:
Total purchase amount
Purchase price × Number of shares = 42.76 yuan × 300 = 12,828 yuan
Total sale amount
Sale price × Number of shares = 43.02 yuan × 300 = 12,906 yuan
3. Calculate fees
(1)Buying Costs
Brokerage commission: 12,828 yuan × 0.015% = 1.92 yuan → minimum charge of 5 yuan
Transfer fee (0.001%): 12,828 yuan × 0.001% = 0.13 yuan
Total purchase fees = 5 yuan (commission) + 0.13 yuan (transfer fee) = 5.13 yuan
(2) Selling fees
Brokerage commission: 12,906 yuan × 0.015% = 1.94 yuan → Minimum charge of 5 yuan
Stamp duty (0.1%): 12,906 yuan × 0.1% = 12.91 yuan
Transfer fee (0.001%): 12,906 yuan × 0.001% = 0.13 yuan
Total selling fees = 5 yuan (commission) + 12.91 yuan (stamp duty) + 0.13 yuan (transfer fee) = 18.04 yuan
4. Total Cost and Profit
Total transaction fees: 5.13 yuan (purchase) + 18.04 yuan (sale) = 23.17 yuan
Gross profit: 12,906 yuan (sale) - 12,828 yuan (purchase) = 78 yuan
Net profit: 78 yuan - 23.17 yuan = 54.83 yuan
Final Result
Your profit on this trade is 54.83 yuan, with a return of +0.43% (net profit/total purchase amount = 54.83 ÷ 12,828).
Itemized Fee Table
Item Amount (yuan)
Buying commission 5.00
Selling commission 5.00
Stamp duty 12.91
Purchase transfer fee 0.13
Sale transfer fee 0.13
Total 23.17
Please let me know promptly if there are any other fee policies or questions about the calculation!
Alibaba Tongyi Qianwen

To calculate your stock profit, we need to account for the total purchase and sale amounts, brokerage commissions, and any applicable stamp duty and other fees.
For now, we will ignore stamp duty and other potential fees, such as transfer fees, since you have not provided the relevant information.
Usually in mainland China, stamp duty of 0.1% is charged when selling stocks.
Purchase Costs
Purchase amount = 42.76 * 300 = 12828 yuan
Purchase commission: Since the commission rate is 0.015%, namely 0.00015 * 12828 = 1.9242 yuan, but the minimum charge is 5 yuan, the actual commission paid is 5 yuan.
Total purchase cost = Purchase amount + Purchase commission = 12828 + 5 = 12833 yuan
Sale Proceeds
Sale proceeds = 43.02 * 300 = 12906 yuan
Selling commission: Similarly, 0.00015 * 12906 = 1.9359 yuan, but the actual commission paid is at least 5 yuan.
Stamp duty = 0.001 * 12906 = 12.906 yuan
Total sale proceeds = Sale amount - Sale commission - Stamp duty = 12906 - 5 - 12.906 ≈ 12888.094 yuan
Net profit
Net profit = Total sale proceeds - Total purchase cost = 12888.094 - 12833 = 55.094 yuan
Therefore, excluding other fees, your net profit is approximately 55.09 yuan.
Please note that this calculation is a simplified estimate based on the information provided, and actual circumstances may differ.
You are advised to consult a professional financial adviser when making investment decisions.
iFLYTEK Spark

To calculate stock returns, we need to account for the total purchase and sale amounts, commission fees, and the final net profit. Here is the detailed calculation:
1. Calculate the total purchase amount
The purchase price is 42.76 yuan per share, and 300 shares are purchased.
Total purchase amount=42.76×300=12828 yuan
Total purchase amount=42.76×300=12828 yuan
2. Calculate the purchase commission
The brokerage commission rate is 0.015%, with a minimum of 5 yuan.
Purchase commission=12828×0.015%=12828×0.00015=1.9242 yuan
Purchase commission=12828×0.015%=12828×0.00015=1.9242 yuan
Since the commission is below the minimum charge of 5 yuan, the actual purchase commission is 5 yuan.
3. Calculate the total sale proceeds
The selling price is 43.02 yuan per share, and 300 shares are sold.
Total sale amount=43.02×300=12906 yuan
Total sale amount=43.02×300=12906 yuan
4. Calculate the sale commission
The brokerage commission rate is 0.015%, with a minimum of 5 yuan.
Sale commission=12906×0.015%=12906×0.00015=1.9359 yuan
Sale commission=12906×0.015%=12906×0.00015=1.9359 yuan
Since the commission is below the minimum charge of 5 yuan, the actual selling commission is 5 yuan.
5. Calculate stamp duty
The stamp duty rate is 0.1%.
Stamp duty=12906×0.1%=12906×0.001=12.906 yuan
Stamp duty=12906×0.1%=12906×0.001=12.906 yuan
6. Calculate total costs and total revenue
The total cost includes the total purchase amount and the buying commission.
Total cost=12828+5=12833 yuan
Total cost=12828+5=12833 yuan
Total proceeds equal the total sale amount minus the selling commission and stamp duty.
Total proceeds=12906−5−12.906=12888.094 yuan
Total proceeds=12906−5−12.906=12888.094 yuan
7. Calculate net profit
Net profit equals total proceeds minus total cost.
Net profit=12888.094−12833=55.094 yuan
Net profit=12888.094−12833=55.094 yuan
Conclusion
Your stock profit is 55.094 yuan.
ByteDance Doubao

For this problem, use the relevant stock trading formulas to calculate the purchase cost, sale proceeds, commissions, stamp duty, and other fees, then calculate the return on the stock.
Stock trading fees mainly include brokerage commissions and stamp duty (charged only when selling), among others. Stamp duty is \(0.1\%\) of the transaction value .
1. **Calculate the purchase cost**:
The purchase cost includes the amount paid for the shares and the commission charged at purchase.
- Amount spent buying shares: Using the formula “Transaction amount = Purchase price per share × Number of shares purchased,” given a purchase price of \(42.76\) yuan and a purchase of \(300\) shares,
Then the amount spent buying the shares is \(42.76×300 = 12828\) yuan.
- Commission when buying: according to the formula “commission = transaction amount × commission rate”, given a brokerage commission rate of \(0.015\%\),
The purchase commission is therefore \(12828×0.015\%\)\( = 1.9242\) yuan.
Since the minimum brokerage commission is \(5\) yuan, the purchase commission is calculated as \(5\) yuan.
Therefore, the purchase cost is the amount spent buying shares plus the purchase commission, namely \(12828 + 5 = 12833\) yuan.
2. **Calculate sale proceeds**:
Sale proceeds consist of the amount received from selling the shares, minus the selling commission and stamp duty.
- Amount from selling the shares:Using the formula “Transaction amount = Sale price per share×Number of shares sold,” given a sale price of \(43.02\) yuan and \(300\) shares sold,
The proceeds from selling the shares are therefore \(43.02×300 = 12906\) yuan.
- Commission on selling: According to the formula “commission = transaction amount×commission rate”, given that the brokerage commission rate is \(0.015\%\),
Then the commission when selling is \(12906×0.015\%\)\( = 1.9359\) yuan.
Since the brokerage commission has a minimum of \(5\) yuan, the commission on the sale is calculated as \(5\) yuan.
- Stamp duty on selling: According to the formula “stamp duty = transaction amount × stamp duty rate”, with a known stamp duty rate of \(0.1\%\),
The stamp duty upon selling is therefore \(12906×0.1\%\)\( = 12.906\) yuan.
Thus, the sale proceeds equal the amount received from selling the shares minus the commission and stamp duty charged on the sale, namely \(12906 - 5 - 12.906 = 12888.094\) yuan.
3. **Calculate the stock return**:
Using the formula “Stock profit = Sale proceeds - Purchase cost,” substitute the purchase cost of \(12833\) yuan and sale proceeds of \(12888.094\) yuan into the formula,
The stock return is therefore \(12888.094 - 12833 = 55.094\) yuan.
In conclusion, the profit from this stock is \(55.094\) yuan.
OpenAI GPT-4o

Let’s calculate your stock returns, including the purchase cost, selling cost, and final net profit.
### Known conditions:
- **Stock name**: Super Telecom
- **Stock code**: 603322
- **Purchase price**: 42.76 yuan
- **Selling price**: 43.02 yuan
- **Shares purchased**: 300 shares
- **Brokerage commission**: 0.015%, with a minimum of 5 yuan
- **Stamp duty**: 0.1% (charged only when selling)
---
### Calculation steps:
#### 1. Purchase cost
- **Total purchase amount** = 42.76 × 300 = **12,828 yuan**
- **Purchase commission** = max(12,828 × 0.015%, 5) = max(1.92, 5) = **5 yuan**
- **Total purchase cost** = 12,828 + 5 = **12,833 yuan**
---
#### 2. Sale proceeds
- **Total sale amount** = 43.02 × 300 = **12,906 yuan**
- **Selling commission** = max(12,906 × 0.015%, 5) = max(1.94, 5) = **5 yuan**
- **Stamp duty** = 12,906 × 0.1% = **12.91 yuan**
- **Total selling costs** = 5 (commission) + 12.91 (stamp duty) = **17.91 yuan**
- **Net sale proceeds** = 12,906 - 17.91 = **12,888.09 yuan**
---
#### 3. Total return
- **Net profit** = Net sale proceeds - Total purchase cost = 12,888.09 - 12,833 = **55.09 yuan**
---
### Results
Your net profit from the stock trade is: **55.09 yuan**
Anthropic Claude-3-Opus

All right, let me calculate the returns on this trade for you.
Purchase portion:
- Stock name: Super Telecom
- Stock code:603322
- Purchase price:42.76 yuan/share
- Purchase quantity:300 shares
- Purchase amount:42.76 × 300 = 12,828 yuan
- Purchase commission:12,828 × 0.015% = 1.92 yuan,below 5 yuan,so the minimum fee of 5 yuan applies
- Total purchase cost:12,828 + 5 = 12,833 yuan
Sale portion:
- Selling price:43.02 yuan/share
- Quantity sold:300 shares
- Sale amount:43.02 × 300 = 12,906 yuan
- Sale commission:12,906 × 0.015% = 1.94 yuan, below 5 yuan, so the minimum of 5 yuan is charged
- Total sale proceeds:12,906 - 5 = 12,901 yuan
Return calculation:
- Gross profit = Total sale proceeds - Total purchase cost
= 12,901 - 12,833 = 68 yuan
- Gross rate of return = Gross return / Total purchase cost × 100%
= 68 / 12,833 × 100% = 0.53%
- Net profit = Gross profit - Sale commission - Purchase commission
= 68 - 5 - 5 = 58 yuan
- Net return rate = Net profit / Total purchase cost × 100%
= 58 / 12,833 × 100% = 0.45%
To sum up, this transaction:
Total investment cost 12,833 yuan,total sale proceeds 12,901 yuan,gross profit 68 yuan,net profit 58 yuan,gross return 0.53%,net return 0.45%.
Because of commissions,the return on a small trade of 300 shares is significantly affected by commission charges.
Excluding commission, the return on this trade is (43.02-42.76)/42.76 = 0.61%.
But after commission was included, the net return fell to 0.45%.
You are advised to weigh your transaction amounts and frequency against your own risk tolerance and expected returns to achieve better investment returns.
Moonshot AI Kimi

First, calculate the total purchase and sale amounts:
Purchase amount:
Sale Amount:
Next, calculate the commission. The commission rate is 0.015%, with a minimum of 5 yuan:
Commission on purchase:
Since 1.9242 yuan is below the minimum commission of 5 yuan, the actual commission is 5 yuan.
Commission on sale:
Since 1.9359 yuan is below the minimum commission of 5 yuan, the actual commission is 5 yuan.
The total commission is:
Calculate gross profit:
Calculate the net profit:
The final answer is:
68yuan
Tencent Yuanbao

1. First, calculate the transaction amount for buying the shares:
- Purchase amount = purchase price per share × number of shares, or $42.76\times300 = 12828$ yuan.
- Brokerage commission on purchase: $12828\times0.015\%=1.9242$ yuan. Since the minimum is 5 yuan, the purchase commission is charged at 5 yuan.
- Total cost of buying the shares = purchase amount+buying commission=$12828 + 5=12833$ yuan.
2. Then calculate the transaction amount for selling the shares:
- Sale amount = Selling price per share × Number of shares, namely $43.02\times300 = 12906$ yuan.
- Brokerage commission on sale: $12906\times0.015\% = 1.9359$ yuan, charged at 5 yuan.
- Actual proceeds from selling the shares = Sale amount - Sale commission =$12906-5 = 12901$ yuan.
3. Finally, calculate the stock return:
- Stock profit = Actual proceeds from the sale - Total purchase cost, or $12901 - 12833=68$ yuan.
Thus, the profit from the Chaoxun Communication stock is 68 yuan.
Baidu ERNIE Bot

First, we need to calculate the total stock purchase cost and total sale proceeds, then factor in brokerage commissions to calculate the actual profit.
Calculate the total purchase cost:
Total purchase amount = 42.76 × 300 = 12828 yuan
Brokerage commission (purchase) = 12828 × 0.015% = 1.9242 yuan (below 5 yuan, so 5 yuan is charged)
Total purchase cost = 12828 + 5 = 12833 yuan
Purchase price: 42.76 yuan/share
Quantity purchased: 300 shares
Brokerage commission: 0.015%, with a minimum of 5 yuan
Calculate the total proceeds from selling:
Total sale amount = 43.02 × 300 = 12906 yuan
Brokerage commission (sale) = 12906 × 0.015% = 1.9359 yuan (less than 5 yuan, so 5 yuan is charged)
Total sale proceeds = 12906 - 5 = 12901 yuan
Selling price: 43.02 yuan/share
Quantity sold: 300 shares
Brokerage commission: 0.015%, with a minimum of 5 yuan
Calculate the return:
Profit = Total sale proceeds - Total purchase cost
Profit = 12901 - 12833 = 68 yuan
Therefore, your stock profit is 68 yuan.
Zhipu Qingyan

First, we need to calculate the total cost of buying and the total proceeds from selling. Then, deduct the commissions and finally calculate the return. The commission is 0.015%, with a minimum of 5 yuan.
Purchase cost: purchase price × number of shares
Sale proceeds: Sale price × Number of shares
Buying commission: Purchase cost × Commission rate; if less than 5 yuan, charge 5 yuan
Sale commission: Sale proceeds × Commission rate; if this is below 5 yuan, charge 5 yuan
Total cost: Purchase cost + Buying commission
Total income: sale proceeds - selling commission
Profit: Total proceeds - Total cost
Now, let's use these formulas to calculate.
Your total stock trading profit is approximately 68.00 yuan, with a profit of approximately 0.23 yuan per share.
Baichuan Intelligence

All right, let us calculate your stock return step by step.
First, we need to calculate the total purchase and sale amounts:
1. Total Purchase Amount:
- Purchase price: 42.76 yuan/share
- Number of shares: 300 shares
- Total purchase amount = 42.76 × 300 = 12828 yuan
2. Total sale amount:
- Selling price: 43.02 yuan/share
- Number of shares: 300 shares
- Total sale amount = 43.02 × 300 = 12906 yuan
Next, we need to calculate the brokerage commission:
3. Commission on purchase:
- Brokerage commission rate: 0.015%
- Purchase commission = 12828 × 0.015% = 12828 × 0.00015 = 1.9242 yuan
- Since the minimum commission is 5 yuan, the purchase commission is calculated as 5 yuan.
4. Commission when selling:
- Selling commission = 12906 × 0.015% = 12906 × 0.00015 = 1.9359 yuan
- Likewise, since the minimum commission is 5 yuan, the selling commission is calculated as 5 yuan.
Now we can calculate the actual profit:
5. Actual earnings:
- Actual profit = total sale amount - total purchase amount - buying commission - selling commission
- Actual return = 12906 - 12828 - 5 - 5 = 78 - 10 = 68 yuan
Therefore, your stock profit is 68 yuan.
Google Gemini-2.0-Pro

All right, let's calculate your stock returns:
**Purchase cost:**
* Purchase price: 42.76 yuan/share
* Quantity purchased: 300 shares
* Total purchase price: 42.76 * 300 = 12828 yuan
* Purchase commission: 12828 * 0.015% = 1.9242 yuan
Since the purchase commission is below the minimum commission of 5 yuan, the minimum commission applies.
* Total purchase cost: 12828 + 5 = 12833 yuan
**Sale proceeds:**
* Sale price: 43.02 yuan/share
* Number of shares sold: 300 shares
* Total sale value: 43.02 * 300 = 12906 yuan
* Selling commission: 12906 * 0.015% = 1.9359 yuan
Because the selling commission is below the minimum commission of 5 yuan, the minimum commission applies.
* Net sale proceeds: 12906 - 5 = 12901 yuan
**Total return:**
* Total profit = Net sale proceeds - Total purchase cost = 12901 - 12833 = 68 yuan
**Summary:**
Your total trading return on Chaoxun Communication (603322) is 68 yuan RMB.
xAI Grok

All right, let's calculate your stock returns step by step:
### Purchase cost
- **Purchase price**: 42.76 yuan
- **Number of shares**: 300 shares
- **Total purchase amount**: \( 42.76 \times 300 = 12828 \) yuan
### Sale Proceeds
- **Selling price**: 43.02 yuan
- **Number of shares**: 300 shares
- **Total sale amount**: \( 43.02 \times 300 = 12906 \) yuan
### Transaction Cost Calculation
#### Purchase commission:
- **Commission rate**: 0.015%
- **Purchase commission**: \( 12828 \times 0.015\% = 1.9242 \) yuan. Under the minimum fee requirement of 5 yuan, the purchase commission should be **5 yuan**.
#### Selling commission:
- **Commission rate**: 0.015%
- **Selling commission**: \( 12906 \times 0.015\% = 1.9359 \) yuan. Under the same minimum charge of 5 yuan, the selling commission is also **5 yuan**.
### Total Cost and Total Revenue
- **Total cost** = Total purchase amount + Purchase commission = \( 12828 + 5 = 12833 \) yuan
- **Total proceeds** = Total sale amount - Selling commission = \( 12906 - 5 = 12901 \) yuan
### Profit Calculation
- **Profit** = Total revenue - Total cost = \( 12901 - 12833 = 68 \) yuan
Therefore, your net profit from this stock transaction is **68 yuan**.
360 Zhinao

First, we need to calculate the total purchase and sale amounts.
Total purchase amount = Purchase price * Number of shares = 42.76 * 300 = 12828 yuan
Total sale amount = Selling price * Number of shares = 43.02 * 300 = 12906 yuan
Then, we need to calculate the brokerage commission.
Purchase commission = Total purchase amount * Broker commission rate = 12828 * 0.015% = 1.92 yuan,
However, the brokerage commission has a minimum charge of 5 yuan, so the actual commission is 5 yuan.
Selling commission = Total sale amount * Broker's commission rate = 12906 * 0.015% = 1.94 yuan,
Likewise, the actual commission is 5 yuan.
Next, we calculate the net return on the stock.
Net stock profit = Total sale amount - Total purchase amount - Buying commission - Selling commission = 12906 - 12828 - 5 - 5 = 68 yuan
So, your stock profit is 68 yuan.
商汤商量 (Shang Tang; discuss)

First, we need to calculate the total value of the stock purchases and sales.
Total purchase value = Stock purchase price * Number of shares
Total purchase value = 42.76 * 300
Total purchase value = 12828 yuan
Total sale value = Stock sale price * Number of shares
Total sale value = 43.02 * 300
Total sale value = 12906 yuan
Next, we need to calculate the brokerage commission. The commission is a percentage of the transaction value, but the minimum charge is 5 yuan.
Buying commission = max(Total purchase value * 0.015%, 5 yuan)
Buying commission = max(12828 * 0.00015, 5)
Buying commission = max(1.9242, 5)
Purchase commission = 5 yuan (because 1.9242 yuan is less than 5 yuan, the minimum fee of 5 yuan applies)
Selling commission = max(total sale value * 0.015%, 5 yuan)
Sale commission = max(12906 * 0.00015, 5)
Selling commission = max(1.9359, 5)
Selling commission = 5 yuan (as above, the minimum fee of 5 yuan applies)
Now we can calculate the net profit:
Net profit = (Total sale value - Sale commission) - (Total purchase value + Purchase commission)
Net profit = (12906 - 5) - (12828 + 5)
Net profit = 12901 - 12833
Net profit = 68 yuan
So, your stock profit is 68 yuan.
Kunlun Tech Tiangong AI
Calculating the Purchase Cost
Total purchase price of the shares:(42.76\times300 = 12828) yuan.
Brokerage commission: Since (12828\times0.015%=19.242) yuan, and (19.242\gt5), the commission on the purchase is (19.242) yuan.
Purchase cost = Total share price + Purchase commission = (12828 + 19.242=12847.242) yuan.
Calculate sale proceeds
Total proceeds from selling the shares: (43.02\times300 = 12906) yuan.
Brokerage commission: Since (12906\times0.015% = 19.359) yuan, and (19.359\gt5), the commission on the sale is (19.359) yuan.
Sale proceeds = Total stock price - Selling commission=(12906-19.359 = 12886.641) yuan.
Calculate Stock Returns
Stock profit = Sale proceeds - Purchase cost=(12886.641 - 12847.242=39.399) yuan.
Therefore, the return on this Chaoxun Communication stock trade is approximately (39.4) yuan.