Percentage Decrease Calculator
Calculate the percentage decrease between an original value and a new value.
How to Calculate Percentage Decrease
To calculate percentage decrease, subtract the new value from the original value, divide by the original value, then multiply by 100.
Examples
FAQ
What is percentage decrease?
Percentage decrease measures how much a value has dropped relative to its original value, expressed as a percentage.
How do you calculate decrease from two values?
Subtract the new value from the original value, divide by the original value, then multiply by 100.
What is the formula for percentage decrease?
The formula is: Percentage Decrease = ((Original Value − New Value) ÷ Original Value) × 100.
Can a percentage decrease be more than 100%?
No. A 100% decrease means the value reaches zero. You cannot decrease something by more than 100% of itself.
What is the difference between percentage decrease and absolute decrease?
Absolute decrease is the raw difference (e.g. 100 − 80 = 20). Percentage decrease expresses that difference as a percentage of the original value (e.g. 20%).