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Markup vs margin: why 25% markup is only 20% margin

Markup is profit as a share of your cost. Margin is profit as a share of your price. Because the price is bigger than the cost, the same dollars of profit are a smaller margin than markup. Contractors who add “25% on top” and call it a 25% margin leave money on every job.

The two formulas

Example: a job costs $2,750 all-in. To keep a 20% margin the price is $2,750 ÷ 0.80 = $3,437.50. Charging $2,750 × 1.20 = $3,300 keeps only a 16.7% margin.

Conversion table

MarkupMarginMarginMarkup needed
10%9.1%10%11.1%
20%16.7%20%25%
25%20%25%33.3%
33.3%25%30%42.9%
50%33.3%40%66.7%
100%50%50%100%

Then find your walk-away price — full cost including overhead, below which the job loses money — in the Trade Bid Studio, or pick a trade-specific bid calculator that works out hours and quantities too.

Questions

How do I convert markup to margin?

Margin = markup / (1 + markup). A 25% markup is 0.25 / 1.25 = 20% margin.

How do I convert margin to markup?

Markup = margin / (1 - margin). A 30% margin needs a 0.30 / 0.70 = 42.9% markup.