Percentage Calculator

Calculate percentages, increases, decreases, and more

What is X% of Y? Or X is what percent of Y?

Calculate X% of Y

Calculate the value after increasing or decreasing by a percentage

Calculate the percentage difference between two numbers

Percentage Formulas
  • P% of X (P / 100) × X
  • X is what percent of Y? (X / Y) × 100
  • Increase by P% X × (1 + P / 100)
  • Decrease by P% X × (1 - P / 100)
  • Percentage difference |(X - Y)| / ((X + Y) / 2) × 100