Profit and Loss Calculator
A quick way to see whether a sale or batch of sales makes money. Enter the cost and selling price per unit, how many units you sold and any extra costs such as shipping or fees. You get the total profit or loss, profit per unit, profit percentage on cost (markup) and margin on revenue, with a plain explanation of how markup and margin differ.
How to use the Profit and Loss Calculator
- Enter the cost price and selling price per unit.
- Enter the quantity sold.
- Add any extra costs for the whole batch, such as delivery or platform fees.
- Press Calculate to see profit or loss, markup and margin.
Features
- Total and per-unit profit or loss
- Profit % on cost (markup) and margin on selling price
- Extra costs spread across all units
- Currency selector and copyable result
Benefits
- Check that a price covers all your costs before you sell
- Understand why a 25% markup is only a 20% margin
- Answer textbook profit and loss percentage questions quickly
Frequently asked questions
How is profit percentage calculated?
Profit % (as taught in most schools) is profit ÷ cost price × 100. For an item bought at 80 and sold at 100 that is 20 ÷ 80 = 25%.
What is the difference between markup and margin?
Markup compares profit with cost; margin compares profit with the selling price. The same 20 profit on a 100 sale is a 25% markup but a 20% margin.
How are extra costs handled?
Extra costs are added to the total cost of the batch, which raises the effective cost per unit and reduces profit.
Does this include overheads and tax?
Only the costs you enter are included. Rent, wages and income tax are not deducted unless you add them as extra costs, so treat the result as an estimate rather than accounting advice.
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