Percentage Change Calculator
The Percentage Change Calculator tells you how much a value has increased or decreased, expressed as a percentage. Enter the original (old) value and the new value — a positive result means an increase, a negative result means a decrease. This is useful for tracking price changes, growth rates, score improvements, and any comparison between two numbers.
How to Use This Calculator
- 1
Enter the original (starting) value in the first field.
- 2
Enter the new (ending) value in the second field.
- 3
Click Calculate — a positive result is an increase, negative is a decrease.
Frequently Asked Questions
Percentage Change = ((New Value − Old Value) / |Old Value|) × 100. Divide the difference by the absolute value of the original, then multiply by 100.