calculators

Percentage Calculator

Calculate percentages easily. Free online percentage calculator for finding percentages, percentage change, and percentage of a number.

Value

Percentage (%)

How It Works

A percentage is a number or ratio expressed as a fraction of 100. The percentage calculator helps you quickly find percentages, calculate what percent one number is of another, and determine percentage changes.

Formula

Percentage = (Value × Percentage Rate) ÷ 100

To find a percentage of a number, multiply the number by the percentage rate and divide by 100. For example, 25% of 200 = (200 × 25) ÷ 100 = 50.

Examples

Input	Output
25% of 200	50
15% of 85	12.75
What % is 25 of 200	12.5%

Frequently Asked Questions

How do I calculate a percentage?▾

To calculate a percentage, multiply the number by the percentage rate and divide by 100. For example, 20% of 150 = (150 × 20) ÷ 100 = 30.

How do I calculate percentage change?▾

Percentage change = ((New Value - Old Value) ÷ |Old Value|) × 100. A positive result indicates an increase, while a negative result indicates a decrease.

What is the difference between percent and percentage?▾

"Percent" refers to the specific number with the % symbol (e.g., 25%), while "percentage" is the general concept. In practice, they are often used interchangeably.