What This Calculator Measures
Percentage increase measures growth from an original value to a higher new value. It expresses the amount of increase as a percentage of the original value.
Use it for increases in prices, quantities, scores, traffic, or other values measured in the same unit.
Percentage Increase Formula
Formula
((New value − Original value) ÷ Original value) × 100
The original value is the denominator because it is the starting reference.
The original value must be greater than zero. A lower new value is a decrease and is identified as such by the calculator.
How to Calculate It
Step-by-step method
- Subtract the original value from the new value.
- Divide that increase by the original value.
- Multiply by 100 to express the result as a percentage.
From 100 to 125: 125 − 100 = 25.
(25 ÷ 100) × 100 = 25% increase.