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% Percent Calculator
Calculation Type
What is X% of Y?
X is what percent of Y?
Percentage change from X to Y
Increase X by Y%
Decrease X by Y%
X Value
Y Value
Precision (decimal places)
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Calculate
Result
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Calculation Details
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Notes:
Percentage change formula: ((New Value - Old Value) / Old Value) × 100
A positive percentage change indicates an increase, negative indicates a decrease
For "X is what percent of Y", the result is (X / Y) × 100
Percentage increase: X + (X × Y/100)
Percentage decrease: X - (X × Y/100)