8.05% is the change from 596 to 644
Calculation steps:
[( 644 - 596 ) ÷ 596] x 100 = 8.05%
Formula
Percentage change = [(644 - 596) / 596] x 100
Subtract the new number by the original number
644 - 596 = 48
48 ÷ 596 = 0.08053691275167785
0.08053691275167785 x 100 = 8.05%