How do I calculate a percentage increase?

Subtract the original value from the new value, divide by the original value, then multiply by 100.

Can I use negative numbers?

Yes, the change mode correctly reports a decrease when the new value is smaller.

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Percentage Calculator

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Percentage Calculator

Find X% of Y, what percent X is of Y, or the percentage change between two numbers.

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Percent (%)Of value

About this tool

This calculator covers the three most common percentage questions people search for: finding a percentage of a number, finding what percentage one number is of another, and finding the percentage increase or decrease between two values.

Examples

20% of 250 is 50.
45 is 15% of 300.
Going from 80 to 100 is a 25% increase.

Frequently asked questions

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