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Percentage calculator
Work out X% of a number, what percent one number is of another, and percentage change.
What is X% of Y?
X is what percent of Y?
Percentage change from X to Y
How it works
What is X% of Y: Y × X ÷ 100.
X is what percent of Y: X ÷ Y × 100.
Percentage change from X to Y: (Y − X) ÷ X × 100. A positive result is an increase, a negative one a decrease.