Percentage Calculator

Calculate percentages, increases, decreases, and more

Basic Percentage: What is X% of Y?

Example: What is 20% of 150?

Solution: 20% × 150 = 30

Percentage Visualization

0% 20% 100%
20%

Percentage

20%

Value

30

Percentage Formulas & Examples

Basic Percentage

X% of Y = (X/100) × Y

20% of 150 = 30

Percentage Increase

% Increase = [(New - Original)/Original] × 100

100 to 150 = 50% increase

Percentage Decrease

% Decrease = [(Original - New)/Original] × 100

200 to 150 = 25% decrease

Find Percentage

X is what % of Y = (X/Y) × 100

30 is 20% of 150

Common Percentages

1% = 0.01
5% = 0.05
10% = 0.1
15% = 0.15
20% = 0.2
25% = 0.25
50% = 0.5
75% = 0.75

Percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%".