Percentage Decrease Calculator
Calculate the percentage decrease from an initial value to a final value. Use it for sale discounts, price drops, weight loss tracking, budget cuts, and any situation where a value has gone down.
Complete User Guide
Enter the original (starting) value and the new (final) lower value. The calculator finds how much the value fell and expresses it as a percentage of the original. If the new value is actually higher, the result will be negative.
The Mathematical Formula
((Old Value - New Value) / Old Value) × 100
Percentage Decrease = ((Old Value − New Value) / Old Value) × 100. Example: a product drops from $120 to $90. Decrease = ((120 − 90) / 120) × 100 = 25%.
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