Percentage Calculator

Math

Work out what percent of a number, percent change between two values, and percentage increase/decrease — instantly.

Choose a calculation

What is % of ?

Quick formulas

X% of Y → (X ÷ 100) × Y Percent change → ((New − Old) ÷ Old) × 100 Increase by X% → Base × (1 + X ÷ 100) Decrease by X% → Base × (1 − X ÷ 100)