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Percentage Calculator

A collection of free and easy-to-use percentage calculators.

What is X% of Y?

What is % of ?
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X is what percent of Y?

is what percent of ?
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Percentage Increase/Decrease

From to ?
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Frequently Asked Questions

How do you calculate a percentage of a number?

To calculate the percentage of a number, you convert the percentage to a decimal and then multiply it by the number. For example, 20% of 150 is calculated as (20 / 100) * 150 = 30.

How do you calculate percentage increase or decrease?

To calculate the percentage change, subtract the old value from the new value, divide the result by the old value, and then multiply by 100. The formula is: ((New Value - Old Value) / Old Value) * 100.