Percentage Change Calculator
Compute ((B − A) ÷ |A|) × 100 to measure relative change from A to B.
Calculator
Percentage Change Calculator
Result
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Formula
((B − A) ÷ |A|) × 100
Step-by-step
- 1
Enter the old value
This is your starting point A.
- 2
Enter the new value
This is your ending point B.
Worked example
Example input: a: 100, b: 120
Result: 20
Related tools
- Percentage Increase
Raise a value by a percentage.
- Reverse Percentage
Find the original whole.