Percentage Decrease Calculator

Calculate the percentage decrease from one value to another. Shows the exact decrease, the difference, and the step-by-step formula.

Enter your values

Original value (higher)

New value (lower)

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Percentage decrease

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Original

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New value

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Difference

FAQ

What is the percentage decrease formula? ›

Percentage Decrease = ((Original − New) ÷ Original) × 100. Example: from 200 to 150 → (200 − 150) ÷ 200 × 100 = 25% decrease.

How do I find the new value after a percentage decrease? ›

New Value = Original × (1 − Decrease% ÷ 100). Example: $200 with 25% decrease → $200 × 0.75 = $150.

What if my new value is higher than the original? ›

If the new value is higher, the result will be a percentage increase, not a decrease. This calculator shows the signed percentage change — a negative result means the new value is lower (a decrease).

About this calculator

The percentage decrease calculator finds how much a value has fallen relative to its starting point. Common uses include price drops, salary cuts, weight loss, test score decreases, and population decline. It uses the formula: ((Original − New) ÷ Original) × 100.