Markup
Margin and markup are not twins.
Vendors often say markup. Accountants and P&Ls say margin. Same product, different denominator — profit over cost vs profit over price.
Flip between the two so a “50%” conversation doesn’t wreck a quote. This page converts the percentage only; it doesn’t need a dollar cost.
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%
margin = markup ÷ (100 + markup)
Markup in50.0%
Margin33.3%
Estimates only — not tax or accounting advice. Double-check before you print price tags.
How it's calculated
Markup = profit ÷ cost. Margin = profit ÷ price. A 50% markup on cost becomes a 33.3% margin on price. A 50% margin needs a 100% markup (keystone) on the same deal.
50% markup → 33.3% margin 50% margin → 100% markup