Worked example
Here is a simple Percentage Difference example:
|80 − 100| ÷ ((80 + 100) ÷ 2) × 100 → 22.22%.Percentage Difference Calculator
Compare two values without treating either one as the starting value.
Difference20
Average90
Estimate based on the values entered.
Practical guide
Percentage Difference Calculator
Common mistakes to avoid
- Use percentage change when one value is the original.
- Both values are treated equally here.
- Results are undefined when their average is zero.
Frequently asked questions
What does the Percentage Difference calculate?
Compare two values without treating either one as the starting value.
Which formula is used?
Difference % = |A − B| ÷ ((A + B) ÷ 2) × 100
Can I rely on this result?
Use the result as a planning estimate. Check important financial, tax, legal, investment, or health decisions with a qualified professional.