UnitShift

Percentage Calculator

Calculate percentages quickly: X% of Y, what percent X is of Y, or percentage change.

20% of 100 is 20

% of
20% of 100
20

Popular Percentage Calculations

10% of 100 = 1015% of 200 = 3020% of 50 = 1025% of 100 = 2530% of 150 = 4533% of 300 = 9950% of 200 = 10075% of 500 = 37510% of 1000 = 100

How to Calculate Percentages

How to calculate X% of Y?

Multiply Y by X/100. For example, 20% of 150 = 150 × (20/100) = 30.

How to find what percentage X is of Y?

Divide X by Y and multiply by 100. For example, 30 is what percent of 150? (30/150) × 100 = 20%.

How to calculate percentage change?

Percentage change = ((New - Old) / |Old|) × 100. For example, from 80 to 100: ((100-80)/80) × 100 = +25%.