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ZAVIA

Percentage Calculator

Calculate percentages instantly — what is X% of Y, percentage increase/decrease, and what percent one number is of another.

Free · No sign-up · Runs in your browser — nothing is uploaded

15% of 200

30

How to use

  1. Choose the calculation type.
  2. Enter the numbers.
  3. The result appears instantly — nothing is sent anywhere; it all runs in your browser.

Formula

Percentage = (Part ÷ Whole) × 100

Example

What is 15% of 200? (15 ÷ 100) × 200 = 30.

FAQ

How do I calculate a percentage increase?

Subtract the old value from the new value, divide by the old value, and multiply by 100.

Is my data stored?

No. Every Zavia tool runs entirely in your browser. Nothing you type leaves your device.