Calculators
Percentage Calculator
Three calculation modes: find X% of Y, find what percentage X is of Y, or calculate percentage increase/decrease.
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How to use Percentage Calculator
1
Choose a mode
Select one of the three calculation modes depending on what you need.
2
Enter your values
Fill in the number fields. Results update instantly.
3
Read the result
The answer is shown clearly below the inputs.
Frequently Asked Questions
What is the difference between the three modes?
'X% of Y' finds a percentage of a number. 'X is what % of Y' finds what percentage one number is of another. '% Change' calculates the percentage increase or decrease between two values.
How is percentage change calculated?
% change = ((new value - old value) / |old value|) × 100. A positive result is an increase, negative is a decrease.