Percentage Calculator
Find X% of a number, what percent one number is of another, and % increase or decrease.
What do you want to find?
Result
100
20% of 500 = 100
How to use the percentage calculator
- Pick the question you want to answer.
- Enter the two numbers.
- The result updates instantly.
Frequently asked questions
How do I calculate percentage increase?
Percentage change = (New − Old) ÷ Old × 100. A positive value is an increase, negative is a decrease.
How do I find what percent X is of Y?
Divide X by Y and multiply by 100. For example, 45 of 60 is 45 ÷ 60 × 100 = 75%.