How do I find a percentage of a number?

Select percent-of mode, enter the number and percent.

Can I calculate discounts?

Yes. Use increase or decrease mode for markups and sales.

Percent of, add percent, or subtract percent.

Theme

Private by design: This tool runs in your browser — your data is not uploaded.

Mode

Number

Percent

What is 15% of 200? The answer is 30. Increase 200 by 10% to get 220, or decrease by 10% to get 180.

How do I find a percentage of a number?: Select percent-of mode, enter the number and percent.
Can I calculate discounts?: Yes. Use increase or decrease mode for markups and sales.

Last updated: 2026-05-31