Calculate profit, profit margin and markup from cost and selling price.
Note: margin and markup are different formulas and are not interchangeable — margin divides by revenue, markup divides by cost.
Results are estimates based on the values entered.
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Enter cost and revenue to get profit, profit margin and markup. They use different bases: margin is relative to revenue, markup is relative to cost.
Margin = profit ÷ revenue × 100%, dividing by revenue; markup = profit ÷ cost × 100%, dividing by cost. They have different denominators and different values — this tool shows both, clearly labeled, to avoid confusion.
Since margin divides by revenue, a 0 revenue makes margin undefined — the tool shows "—" rather than an error or a misleading 0%.
No — both must be 0 or positive; the tool validates this and shows an error otherwise.
