Calculate percentages instantly. Find a percentage of an amount, increase by a percentage, or decrease by a percentage.
How to calculate a percentage:To calculate a percentage, multiply the number by the percentage, then divide by 100.20% of 100 = (20 ÷ 100) × 100 = 20To increase a number:
100 increased by 20% = 100 × (1 + 20 ÷ 100) = 120To decrease a number:
100 decreased by 20% = 100 × (1 − 20 ÷ 100) = 80