How to use the Percentage Calculator
- Pick the calculator you need.
- Type your numbers — the answer updates instantly.
Frequently asked questions
How do I calculate a percentage of a number?
Multiply the number by the percentage and divide by 100. For example, 15% of 2,000 = 2,000 × 15 ÷ 100 = 300.
How do I calculate percentage change?
Subtract the old value from the new value, divide by the old value and multiply by 100.
How do I add VAT or a discount?
Use the last calculator: choose increased by the VAT rate, or decreased by the discount percentage.