How it works
(Price − cost) ÷ cost × 100
A $60 item sold for $100 has a 66.67% markup.
What the result means
Markup uses cost as its denominator. Margin uses selling price, so the same transaction has a 40% margin. A 50% markup does not create a 50% margin.
Assumptions & limits
Mathematical estimate using the values entered. Costs or conditions not included in your inputs are excluded. Method reviewed October 18, 2026.
Common questions
Are my inputs saved?
We do not store or submit form inputs. Reloading restores the example values.
Is the result exact?
The display rounds to at most two decimal places; intermediate values retain their precision. Assumptions may differ from your actual situation.