Math
Percentage Decrease Calculator
Calculate decrease and percentage reduction between two values.
Percentage Decrease Calculator result
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Amount decreased25Percentage decrease25%Multiplier0.75×
Percentage decrease = (original − new) ÷ original × 100. This directional calculator rejects the opposite job instead of displaying a misleading negative decrease.
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How this tool works
Percentage decrease is calculated as (original value − new value) ÷ the absolute original value × 100, while the absolute decrease remains original value minus new value.
Limits to know
A starting value of zero has no finite percentage decrease. Results above 100% or negative decreases are possible when the new value crosses zero or exceeds the start.