◆ Percentage CalculatorHow it works

THREE CALCULATORS IN ONE

Calculate percentages without guesswork

Find a percentage of a value, measure increase or decrease, or work backward from a result.

Percentage formulas

Percentage of a number

Divide the percentage by 100, then multiply by the base value.

Percentage change

Subtract the old value from the new value, divide by the absolute old value, then multiply by 100.

Reverse percentage

Divide the known result by the percentage as a decimal to recover the original value.