Mathematical Calculators

Free online percentage calculator with multiple calculation types. Calculate percentages, increases, decreases, differences, and more with step-by-step solutions.

Calculation Type

What is % of

is what percent of

From to

Value 1

Value 2

% of what?

Initial Value

Percentage Change %

Number of Times

Common Percentage Examples

What is 20% of 150?

25 is what % of 200?

12.5%

Increase 80 by 25%

100

Difference between 50 and 75

50%

Percentage Tips

To find percentage: (Part/Whole) × 100
Percentage increase: ((New-Old)/Old) × 100
Percentage decrease: ((Old-New)/Old) × 100
Reverse percentage: Number ÷ (Percentage/100)
Compound growth: Initial × (1 + Rate/100)^Time