7.05% is the change from 596 to 638
Calculation steps:
[( 638 - 596 ) ÷ 596] x 100 = 7.05%
Formula
Percentage change = [(638 - 596) / 596] x 100
Subtract the new number by the original number
638 - 596 = 42
42 ÷ 596 = 0.07046979865771812
0.07046979865771812 x 100 = 7.05%