Percentage Change Calculator
Calculate percentage increase, decrease, markup, or margin.
% Change
From old to new
Markup
Cost to selling price
Margin
Profit margin calc
Result
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Enter values and click calculate
Percentage Change Formulas
Percentage Change
% Change = ((New − Old) / Old) × 100
Markup
Markup % = ((Selling Price − Cost) / Cost) × 100
Margin
Margin % = ((Selling Price − Cost) / Selling Price) × 100
Mark-up vs Margin Example
Product costs $60, sells for $100:
- Markup = (100 − 60) / 60 × 100 = 66.67%
- Margin = (100 − 60) / 100 × 100 = 40%