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Percentage Calculator
Calculate percentages, find what percentage one number is of another, and calculate percentage increases or decreases.
What is X% of Y?
Find a percentage of any number.
%
Result
30
X is what percentage of Y?
Find what percentage one value represents of another.
Result
20%
Percentage change
Calculate the percentage increase or decrease between two values.
Result
+25%
How do percentages work?
A percentage represents a value as a fraction of 100. For example, 20% means 20 out of every 100. Percentages are commonly used for discounts, taxes, interest rates, price changes, statistics, and many everyday calculations.
Common percentage formulas
X% of Y = (X Ă· 100) Ă— Y
Percentage = (Value Ă· Total) Ă— 100
Percentage Change = ((New - Original) Ă· Original) Ă— 100