Rangdom

What is P% of N?

X is what percent of Y?

Percentage change from X to Y

Three everyday percentage questions in one place

Find a percentage of a number (N × P ÷ 100), work out what percent one number is of another (X ÷ Y × 100), or measure the percentage increase or decrease from one value to another ((Y − X) ÷ |X| × 100). Every result updates live as you type and accepts decimals and negative numbers.

Inline errors appear instead of a result when a field is empty or non-numeric, when the total in “what percent of” is zero (nothing is a percentage of zero), or when the starting value of a percentage change is zero (the change is undefined).