Percentage Calculator
Calculate percentages, percentage change, and percentage of a number quickly and accurately.
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Frequently Asked Questions
How do I calculate what percentage one number is of another?
Choose 'X is what % of Y', enter the two numbers, and the calculator divides X by Y and multiplies by 100.
How is percentage change calculated?
Percentage change is calculated as (New Value − Old Value) ÷ Old Value × 100, showing the increase or decrease as a percentage.
Can this calculator handle negative numbers?
Yes, it works with negative numbers for all three calculation types.
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