Home / Formulas / Percentage Formulas

Everyday math

Percentage Formulas

Part = (percent ÷ 100) × whole

Percent = part ÷ whole × 100%

Percent change = (new − old) ÷ old × 100%

Example

If 18 out of 60 students choose an option, then 18 ÷ 60 × 100% = 30%.

Open percentage calculator