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What's the discount percentage on this sale? Percentage decrease

Change the values below to see the calculation update in real time.

A product used to cost $ , but now it's on sale for $ .
What is the percentage discount?

Incomplete data. Enter all required values to see the calculations.

Answer: The price was reduced by %.

Type of calculation: Calculating percentage change (decrease).
How to use the calculator: Use the Percentage Change Calculator (“What is the percentage change from the Original value to the New value?”). Enter $200 [A] and $150 [B]. It will show the percentage decrease.
The formula:
We want the percentage change from $200 to $150.
Formula: ((New value - Original value) / Original value) × 100%
Percentage change = (($150 - $200) / $200) × 100% = (-50 / $200) × 100% = -0.25 × 100% = -25% (the minus sign means a decrease)
For informational purposes only.

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App updated: August 2026