Percentage Calculator

Calculate percentages, percentage change, and what percent one number is of another.

Handles the three most common percentage questions: what is X% of Y, what percent is X of Y, and what's the percentage increase or decrease between two numbers.

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Percentage Calculator tool

How to Use Percentage Calculator

  1. Choose the type of percentage calculation you need.
  2. Enter the numbers.
  3. The result updates automatically.

Features

  • X% of Y
  • X is what percent of Y
  • Percentage increase/decrease
  • Instant results as you type

Frequently Asked Questions

How is percentage change calculated?

As ((new value − old value) / old value) × 100, shown as a positive (increase) or negative (decrease) percentage.