Percentage Calculator

Calculate percentages, percentage changes, tips, discounts, and more

Percentage Formulas

Basic Calculations

Percentage of a number:
(Percentage ÷ 100) × Number
What percent is X of Y:
(X ÷ Y) × 100
Percentage change:
((New - Old) ÷ Old) × 100

Practical Applications

Sales tax:
Price + (Price × Tax%)
Discount:
Price - (Price × Discount%)
Markup:
Cost + (Cost × Markup%)