Percentage Calculator

Calculate percentages, percent change, and percent of a number.

100% in your browser · No uploads
?% of ? =—

What this does

Percentage Calculator handles the three most common percent questions: what is X% of Y, X is what percent of Y, and what is the percent change from X to Y. Instant results, no signup.

When to use it

  • Working out a sale price ("$80 with 25% off")
  • Calculating commission or tip from a total
  • Comparing two values as a percentage change
  • Computing a percentage in school or a finance scenario

Frequently asked

What's the difference between percentage change and percentage difference?

Percentage change is directional — increase or decrease from an original. Percentage difference is symmetric and used when neither value is the reference.

Can it handle negative percent change?

Yes — going from 100 to 75 shows as -25%.