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Percentage Calculator

Calculate percentages instantly. Find what is X% of Y, percentage increases, decreases, and more.

What is 20% of 500?

Result

100

20% of 500 = 100

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Understanding Percentages

What is a Percentage?

A percentage is a fraction of 100. The symbol % means "per hundred". For example, 50% means 50 per 100, or half.

Calculating X% of Y

To find X% of Y, multiply Y by X/100. For example, 20% of 500 = 500 × (20/100) = 100.

Percentage Increase

Percentage increase = ((New Value - Old Value) / Old Value) × 100. Shows growth between two values.

Common Uses

Discounts, taxes, tips, interest rates, statistics, grades, and comparing values are common percentage applications.