How do I calculate X% of a number?

Use the "X% of Y" mode. Enter the percentage in the first field and the number in the second field. The result updates instantly.

How is percent change calculated?

Percent change is ((new - old) / |old|) × 100. A positive result means an increase; negative means a decrease.

Calculate percentages instantly. Find what percent X is of Y, calculate X% of a number, or compute percent change between two values.

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Percentage (%)

Value

How do I calculate X% of a number?

Use the "X% of Y" mode. Enter the percentage in the first field and the number in the second field. The result updates instantly.
How is percent change calculated?

Percent change is ((new - old) / |old|) × 100. A positive result means an increase; negative means a decrease.