How is percentage calculated?

Part ÷ whole × 100. Or: percent ÷ 100 × number for 'percent of number'.

No. The whole (divisor) must not be zero.

Yes: (1) Part and whole → percentage; (2) Percent and number → result (percent of number).

Online Percentage Calculator

Find what percent one number is of another (part/whole), or find a percent of a number.

Part

Whole

How is percentage calculated?: Part ÷ whole × 100. Or: percent ÷ 100 × number for 'percent of number'.
Can whole be zero?: No. The whole (divisor) must not be zero.
Two modes?: Yes: (1) Part and whole → percentage; (2) Percent and number → result (percent of number).

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