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Percentage Calculator

Calculate percentages, increases, decreases, and more

What percentage is the first value of the second value?

How to use

  1. Pick a calculation type: percent of, increase, decrease, or percent of value.
  2. Enter the two numbers required for that mode.
  3. Results update instantly; copy if needed.
  4. Switch modes to compare scenarios (e.g., discount vs markup).

Examples

% Of

What percent is 25 of 200? → 12.5%

Increase

Increase 80 by 15% → 92.00

Decrease

Decrease 120 by 20% → 96.00

FAQs

Do you store numbers?

No. Calculations are in-browser only.

Why do decimals show?

We show two decimals for clarity; rounding may differ from currency rules.

Can I use negatives?

Yes, but ensure it fits your scenario (e.g., negative change).

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