What operations are supported?

Percent of a number (P% of N), what percent one number is of another (A of B), and percent change from A to B.

Can I control decimal places?

Yes. Use the decimal places selector to format results from 0 to 6 decimals.

Three quick calculators: P% of N, what percent A is of B, and percent change. Private, runs in your browser.

Decimal places

Percent (P %)

Number (N)

Result: —

A

B

Result: —

From (A)

To (B)

Change: —

Positive = increase, negative = decrease. If the “From (A)” value is 0, percent change is undefined.

All calculations run locally in your browser. No data is sent to a server.
Use decimal places to control rounding (display only; internal math uses full precision).