Percentage Calculator
Calculate percentages, increases, and decreases
Percentage Formulas
What is X% of Y?
Result = (X / 100) × Y
Example: 20% of 150 = 30
X is what % of Y?
Result = (X / Y) × 100
Example: 30 is 20% of 150
Percentage Change
Result = ((New - Old) / Old) × 100
Example: From 100 to 120 = 20% increase