📊 Percentage Calculator
Calculate percentages easily. Find what is X% of Y, what percent X is of Y, and percentage change between two numbers.
What is % of ?
= 30
is what percent of ?
= 22.5%
Percentage change from to
= +25% increase
How to Calculate Percentages
A percentage is a number expressed as a fraction of 100. The word comes from Latin "per centum" meaning "by the hundred."
Formulas
- X% of Y = (X ÷ 100) × Y
- X is what % of Y = (X ÷ Y) × 100
- % Change = ((New - Old) ÷ Old) × 100