Percentage Calculator

Perform various percentage calculations, including basic percentage, increase, decrease, and difference.

Quick Percentages

Select common percentages for quick calculation

Basic Percentage Calculation

Calculate the percentage of a value

Percentage Formulas

Basic Formula

Calculate Percentage: Base Value × Percentage ÷ 100
Example: 100 × 20% ÷ 100 = 20
Application: Calculate discounts, taxes, etc.

Increase Formula

Increase Percentage: Original × (1 + Increase Rate)
Example: 100 × (1 + 25%) = 125
Application: Calculate price hikes, investment returns

Decrease Formula

Decrease Percentage: Original × (1 - Decrease Rate)
Example: 100 × (1 - 25%) = 75
Application: Calculate discounts, cost reductions

Difference Formula

Percentage Difference: (New - Old) ÷ Old × 100
Example: (120 - 100) ÷ 100 × 100 = 20%
Application: Calculate change rate, growth rate