Markup formula
Markup = profit ÷ cost × 100.
Example
If a product costs 50 and sells for 80, profit is 30. Markup is 30 ÷ 50 × 100 = 60%.
Markup vs margin
Markup is based on cost. Margin is based on selling price. The same sale can have 60% markup but 37.5% margin.
Practical use
Markup is useful for pricing products and estimating selling prices.