Percentage Calculator
What is X% of a number?
Calculate a percentage of any number — e.g. a tip, a tax or a discount amount.
X is what percent of Y?
Find out what percentage one number represents of another.
Percentage increase / decrease
Measure the percentage change from an old value to a new value.
Increase a number by X%
Add a percentage on top of a value — e.g. add VAT or a markup.
Decrease a number by X%
Take a percentage off a value — e.g. apply a discount.
X is Y% of what number?
Work backwards from a part and its percentage to the original total.