Percentage Decrease Calculator
Calculate the percentage decrease between two values with the absolute drop shown.
Inputs
Percentage Decrease
20.0000%
Absolute Drop
50.0000
Step by step
Find the absolute drop
250 − 200
= 50
Divide by the original value
50 ÷ 250
= 0.2
Multiply by 100 to get percentage
0.2 × 100
= 20.0000%
How it works
Percentage decrease measures how much a value has fallen relative to the original. Subtract the new value from the old, divide by the absolute value of the original, and multiply by 100.
Formula
Percentage Decrease
Percentage Decrease = ((Old − New) / |Old|) × 100
- Old
- The original (initial) value
- New
- The new (final) value
Frequently Asked Questions
What if the new value is larger than the old?
You get a negative result, which means the value actually increased. Use the Percentage Increase calculator for that scenario.
Can a percentage decrease exceed 100%?
Not in the usual sense — a value can't decrease by more than 100% of itself without going negative. A result over 100% means the value changed sign.