Percent difference22.22%
Percent change A → B25%
Percent change B → A-20%
Absolute difference30
Average of the two values135
Ratio B ÷ A1.25

Percent difference = |120 − 150| ÷ ((120 + 150) ÷ 2) × 100 = 30 ÷ 135 × 100 = 22.22%.

Percent Difference Calculator · free calculator by CalcWorthy