Margin Calculator
This calculator finds profit margin from cost and selling price (or revenue and cost).
Formulas
Profit = Selling Price − Cost
Profit Margin (%) = (Profit ÷ Selling Price) × 100
Markup is different:
Markup (%) = (Profit ÷ Cost) × 100
Example
Cost = $40, Selling Price = $55
Profit = 55 − 40 = $15
Margin = (15 ÷ 55) × 100 ≈ 27.27%
Markup = (15 ÷ 40) × 100 = 37.5%
Many people confuse margin with markup. They are not the same.