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Percentage Decrease Calculator

Calculate percentage decrease between two numbers. See the exact percentage drop and difference. Works for discounts, losses, and declines.

Calculate the percentage decrease from one value to another. Common uses: investment losses (how much did my portfolio drop?), price reductions (how much cheaper is it?), and decline rates.

Tips for Percentage Decrease

1

Formula: ((Old Value - New Value) / Old Value) × 100 = Percentage Decrease

2

A 50% loss requires a 100% gain to recover — losses hurt more than equivalent gains help

3

When comparing price drops, always calculate the percentage, not just the dollar amount

Frequently Asked Questions

How do I calculate percentage decrease?
Subtract the new value from the old value, divide by the old value, multiply by 100. Example: price dropped from $200 to $150. Decrease = ($200 - $150) / $200 × 100 = 25% decrease.
Last updated: April 2026

Data sources: Standard mathematical formulas

For informational purposes only. Not financial, medical, or legal advice. Always consult a qualified professional for decisions affecting your finances or health.

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