Percentage Difference Calculator
Find the relative difference between two values. This calculator uses the standard mathematical formula for comparing two non-sequential values.
What is the percentage difference?
Percentage difference is used when comparing two values that are in the same category but do not have an obvious "old" or "new" relationship. It is calculated by dividing the absolute difference of the two values by their average, then multiplying by 100.
What is the formula for percentage difference?
The formula is: ( |V1 - V2| / ((V1 + V2) / 2) ) × 100. This ensures that the result is the same regardless of which number you start with.
How is it different from percentage change?
Percentage change compares an old value to a new value (Denominator = Old Value). Percentage difference compares two neutral values (Denominator = Average of both values). Use percentage change for growth or shrinkage over time, and percentage difference for comparing two similar things (like heights of two trees).
Can the percentage difference be negative?
No, because the formula uses the absolute difference (the magnitude), the result is always a positive percentage representing the distance between the two values.