Profit Calculator: How Much Did You Really Make?

Enter what you paid per unit, what you sold for, how many units you sold and any other expenses such as transport or packing. The calculator shows your net profit or loss, profit per unit and both profit percentage and margin.

FreeNo sign-upRuns in your browserUpdated 2 Nov 2026
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Transport, packing, rent share and similar.
Your resultLive

Estimates for general information. This is not tax or accounting advice.

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How to use this calculator

  1. Enter the cost of one unit.
  2. Enter the price you sell one unit for.
  3. Enter the number of units sold.
  4. Add other expenses for the whole batch, if any.
  5. Read the net profit, profit per unit, profit on cost and margin on sales.

The formula

Revenue = Selling price × Quantity. Total cost = Cost price × Quantity + Other expenses. Profit = Revenue − Total cost. Profit % (on cost) = Profit ÷ Total cost × 100. Margin % (on sales) = Profit ÷ Revenue × 100.

Worked example

80 cost, 100 selling price, 500 units, ₹4,000 expenses: revenue is ₹50,000, total cost is ₹44,000, so profit is ₹6,000, which is ₹12 per unit. Profit on cost is about 13.64% and margin on sales is 12%.

Understanding your result

Profit percentage and margin use different bases, so they differ even for the same profit. Percentage on cost compares profit with what you spent. Margin compares profit with what you earned. A negative result means a loss.

When to use it

  • Check the result of a trading batch or a market day.
  • Include hidden costs in your profit.
  • Decide whether a product is worth selling.

Assumptions and limits

Does not include tax, interest or your own time. Enter all costs for the same batch of units.

Frequently asked questions

What is the difference between profit % and margin?

Profit % divides profit by cost. Margin divides profit by selling price. Margin is always the smaller number.

Should I include GST?

Use prices without GST if you can claim the credit, otherwise include it in your cost.

What does a negative profit mean?

You sold at a loss. The label changes to net loss.

Can I use it for a single item?

Yes. Enter quantity 1.

Where do I put rent or salaries?

Add your share for the period to other expenses.