📐 Math
Percentage Change Calculator
Find percentage increase/decrease, apply a % change to a value, or find the original value before a change.
Percentage Change
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Formulas
% Change = (New − Old) / |Old| × 100
New Value = Old × (1 ± %/100)
Original = Final / (1 ± %/100)
New Value = Old × (1 ± %/100)
Original = Final / (1 ± %/100)