Percentage Calculator
Three essential percentage calculators in one page — find percentages, calculate change, and determine ratios.
What is X% of Y?
What is
% of
?
X is what % of Y?
is what % of
?
Percentage Change (From → To)
From
to
Advertisement Space
Percentage Formulas
X% of Y = (X/100) × Y. X is what % of Y = (X/Y) × 100. % Change = ((New − Old) / |Old|) × 100. A positive result means an increase; negative means a decrease.