Percentage Profit Calculator on Cost

Percentage profit here is always based on cost, which is how many retailers describe markup-style profit. Selling below cost produces a negative percentage.

How to use this calculator

Percentage profit here is always based on cost, which is how many retailers describe markup-style profit. Selling below cost produces a negative percentage. Results stay in your browser. They are estimates, not financial, tax or medical advice.

Frequently asked questions

How is percentage profit calculated?

Profit = selling price − purchase cost. Profit % = profit / cost × 100.

Is this the same as margin?

No. Margin uses selling price (revenue) as the base. This tool uses cost.