Percentage Calculator

Calculate percentages, find what percent one number is of another, or compute percentage increase and decrease.

Formula

X% of Y = (X / 100) × Y

Example: 20% of 150 = 0.20 × 150 = 30

Worked Example

What is 15% of 200?

  1. Convert 15% to decimal: 15 ÷ 100 = 0.15
  2. Multiply: 0.15 × 200 = 30
  3. Answer: 15% of 200 is 30