Calculating your net profit is straightforward once you know the Stock Profit formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the Stock Profit Calculator.
What is Stock Profit?
The Stock Profit calculation tells you your net profit from a few simple inputs. The figure you are solving for here is the net profit, expressed in INR.
The Stock Profit formula
The core formula is:
Net profit = (Sell price per share - Buy price per share) × Number of shares - Total fees & chargesHere is what each input means:
- Buy price per share — a money amount. Example: ₹100.
- Sell price per share — a money amount. Example: ₹150.
- Number of shares — a number. Example: 50.
- Total fees & charges — a money amount. Example: ₹100.
How to calculate it step by step
- Write down the buy price per share (for example, ₹100).
- Write down the sell price per share (for example, ₹150).
- Write down the number of shares (for example, 50).
- Write down the total fees & charges (for example, ₹100).
- Apply the formula above to get your net profit.
- Double-check the result with the Stock Profit Calculator.
Worked examples
Example 1
| Input / Output | Value |
|---|---|
| Buy price per share | ₹100 |
| Sell price per share | ₹150 |
| Number of shares | 50 |
| Total fees & charges | ₹100 |
| Net profit | ₹2,400.00 |
| Return on investment | 48.00% |
With buy price per share of ₹100, sell price per share of ₹150, number of shares of 50 and total fees & charges of ₹100, the net profit works out to ₹2,400.00.
Example 2
With buy price per share of ₹200, sell price per share of ₹150, number of shares of 50 and total fees & charges of ₹100, the net profit works out to -₹2,600.00.
| Result | Value |
|---|---|
| Net profit | -₹2,600.00 |
| Return on investment | -26.00% |
Example 3
With buy price per share of ₹50, sell price per share of ₹150, number of shares of 50 and total fees & charges of ₹100, the net profit works out to ₹4,900.00.
| Result | Value |
|---|---|
| Net profit | ₹4,900.00 |
| Return on investment | 196.00% |
Tips for an accurate result
- Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
- Round only at the very end. Rounding inputs early can shift the final answer noticeably.
- Re-run the numbers whenever an input changes, rather than estimating from an old result.
- Annual rates must be converted to the period you are calculating for (for example, divide an annual rate by 12 for a monthly figure).
Prefer not to do the maths by hand? — the Stock Profit Calculator does it instantly, for free, with the formula and a worked example built in.
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