Formulas
- X% of Y: X / 100 x Y
- X is what percent of Y: X / Y x 100
- Change from X to Y: (Y - X) / X x 100
Examples
20% of 150 is 30. 30 is 20% of 150. If a price rises from 80 to 100, the increase is 25%.
Frequently asked questions
How do I get 10% of a number?
Divide it by 10.
How do I calculate an increase?
Use percent change from X to Y.
Does it work with decimals?
Yes.
Is it free?
Yes, no sign-up.