CalcKit

Percentage calculator

Find X% of Y, what percent X is of Y, or the percent change between two numbers.

Percent (X)

%

Of (Y)

18% of 80

14.4

18% × 80

Short guide

Three problems, three formulas

X% of Y, X as a percent of Y, and percent change. Zero in the denominator is undefined — the calculator says so instead of inventing a number.

FAQ