Percentage Calculator
Calculate percentages in seconds with three modes: 'percentage of a value' (20% of 250), 'what % is a value of another' (50 is 20% of 250), and 'percentage change' between two amounts. The result updates in real time.
Percentage calculation
Result = value × percentage ÷ 100. Example: 20% of 250 = 50.
Result
Enter a value to apply the percentage to.
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Frequently asked questions
How do I calculate X% of a number?+
Divide the percentage by 100 and multiply by the value. Example: 20% of 250 = (20 ÷ 100) × 250 = 50.
How do I calculate what percentage a value is?+
Divide the partial value by the total and multiply by 100. Example: 50 of 250 = (50 ÷ 250) × 100 = 20%.
How is percentage change calculated?+
Use the formula: ((final value − initial value) ÷ initial value) × 100. A positive result means an increase, negative means a decrease.