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Percentage Calculator

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

What is X% of Y?

% of=
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How to use the Percentage Calculator

1

Choose a calculation type

Select the type of percentage calculation you need from the three tabs.

2

Enter the values

Fill in the input fields with the numbers you want to calculate.

3

Read and copy the result

The result updates instantly. Click Copy to grab it.

What is the Percentage Calculator?

Solve percentage problems three ways: find what X% of a number is, determine what percentage one number is of another, or calculate the percentage change between two values. Results update instantly as you type.

  • Find X% of any number
  • Calculate what percent X is of Y
  • Determine percentage change between two values
  • Handles both increases and decreases
  • Copy results with one click
  • Instant calculation with no button clicks needed

Frequently Asked Questions

What are the three calculation modes?
1) Find X% of a number (e.g. 20% of 500 = 100). 2) Find what percentage X is of Y (e.g. 100 is 20% of 500). 3) Find the percentage change from one value to another (e.g. from 500 to 600 is +20%).
How is percentage change calculated?
It is ((new value - old value) / |old value|) x 100. A positive result means an increase, negative means a decrease.
Can I get a negative percentage?
Yes. A negative percentage change indicates the value decreased. The result is shown with a - sign.

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