Old Number
New Number
is what?
example: 10% of 100 is 10
of what?
example: 10 is 10% of 100

Percent means out of one hundred. In mathematics, a percentage is a number or ratio expressed as a fraction of 100. It is often shown with the symbol "%" or the abbreviation "pct".

With our percentage calculator you will be able to calculate the % change of a number and 2 other common percentage questions.