Overview
A percentage decrease measures the drop relative to the original value. If a price of 200 decreases by 15%, the decrease is 30 and the new price is 170. Enter the value and percentage to calculate the result.
Formula
New value = original value × (1 − percentage ÷ 100).
How it works
Enter the original value
The value before the decrease.
Enter the decrease percentage
A positive percentage representing the drop.
Read the result
The new value, decrease amount and multiplier appear.
Worked examples
Example 1: 200 − 15%
The decrease is 30, and the new value is 170.
Example 2: 80 − 25%
The decrease is 20, and the new value is 60.
Frequently asked questions
Does a 100% decrease mean zero?
Yes, the new value becomes zero.
What if the percentage exceeds 100%?
The new value becomes negative, which can be useful in some financial contexts.
Can I use it for repeated discounts?
Yes, but each discount applies to the new value. For a series of changes, use the cumulative percentage change calculator.
This calculator is for educational and informational purposes only and is not a substitute for professional advice.