Percentage Calculator
Quickly find what X% of a number is, or work out what percent one number is of another.
What is X% of Y?
20% of 500 is
100
X is what percent of Y?
50 is what % of 250
20%
About Percentage Calculator
A percentage represents a fraction of 100. This calculator covers the two most common percentage questions: finding a percentage of a number, and finding what percentage one number is of another.
Tip: To calculate a percentage increase or decrease between two values, subtract the older value from the newer one, then use the second calculator with that difference as X and the older value as Y.