Percentage Difference Calculator

Find the percentage difference between two values.

Percentage difference (%) 40

Formula: |a − b| ÷ ((a + b)/2) × 100

Step-by-step with your numbers:

1. Values used:

2. Value 1 = 40

3. Value 2 = 60

5. Percentage difference = 40%

Did we solve your problem today?

Compare two values symmetrically (neither is the 'reference').

The math behind it

percentage difference = |a − b| ÷ average(a, b) × 100.

40 vs 60 → 20 ÷ 50 × 100 = 40%.

Difference vs change?

Change has a fixed starting reference; difference uses the average of both.