Percentage Calculator
What is X% of Y?
% of
X is what percent of Y?
is what % of
Percentage change from X to Y
from to
A simple percentage calculator for the three most common percent problems: finding X% of a number, working out what percent one number is of another, and calculating percentage increase or decrease.
- What is X% of Y — e.g. 15% of 200.
- X is what percent of Y — e.g. 30 is what percent of 150.
- Percentage change — increase or decrease between two values.
- Instant results as you enter numbers.
Frequently asked questions
How do I find a percentage of a number?
Enter the percent and the number in the first box — for example 20% of 80 equals 16.
How do I calculate percentage increase?
Use the third box: enter the original and new values to see the percent change.
Does it round the result?
Percent answers are shown to two decimal places for readability.