Example 1
If a value drops from 100 to 75, the decrease is 25%.
Quick Tool Labs
Percentage Decrease Calculator
Use this percentage decrease calculator to measure how much a value has fallen. It shows the percent decrease, the absolute drop, and the remaining share instantly.
Calculator
Percent decrease0%
Absolute change0
Remaining share0x
Enter the original value and the new value to calculate percentage decrease.
How this percentage decrease calculator works
This calculator compares a lower value to its original amount and shows the percentage decrease, the absolute amount lost, and the percentage that remains.
Percentage decrease = ((original value − new value) ÷ original value) × 100
Use it for discounts, traffic drops, inventory shrinkage, weight change, sales declines, and performance comparisons.
Examples
Example 2
If a product falls from 80 to 60, the decrease is 25%.
Example 3
If traffic drops from 2,000 to 1,500 visits, the decrease is 25%.
Frequently asked questions
What if the original value is zero?
The standard percent-decrease formula cannot be used when the original value is zero.
What if the new value is higher?
The formula will return a negative result, which indicates that the value increased rather than decreased.
What is remaining share?
It is the new value divided by the original value, expressed as a percentage.