Percentage Calculator

Calculate percentages three easy ways: find X% of Y, find what percentage X is of Y, or calculate the percentage change between two values.

What is (%)

Enter values to see the result.

Frequently Asked Questions

How do I calculate percentage?

To calculate a percentage, divide the part by the whole and multiply by 100. For example, if you scored 80 out of 100, your percentage is (80/100) * 100 = 80%.

How do I find a percentage of a number?

Multiply the number by the percentage fraction. For example, 20% of 50 is (20/100) * 50 = 10.

How is percentage increase/decrease calculated?

Subtract the old value from the new value, divide by the absolute old value, and multiply by 100.

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