How do I calculate a percentage increase?

Percentage increase = ((new value - old value) / old value) × 100. Use the 'Percentage Change' tab.

How do I find what percent one number is of another?

Use the 'X is what % of Y' tab. Enter both numbers and the result is instant.

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Percentage Calculator

Calculate percentages, percentage changes, and what percent X is of Y.

What is A% of B?

Percentage (%)

Of what number?

About the Percentage Calculator

Percentage calculations come up constantly discounts, exam scores, growth rates, tips. Our percentage calculator covers all the common cases: what is X% of Y, what percentage is X of Y, and percentage increase/decrease.

How to use the Percentage Calculator

Choose the calculation type from the tabs.
Enter the required values.
The result is calculated instantly.

Frequently Asked Questions

How do I calculate a percentage increase?: Percentage increase = ((new value - old value) / old value) × 100. Use the 'Percentage Change' tab.
How do I find what percent one number is of another?: Use the 'X is what % of Y' tab. Enter both numbers and the result is instant.

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