19.92% is the change from 532 to 638
Calculation steps:
[( 638 - 532 ) ÷ 532] x 100 = 19.92%
Formula
Percentage change = [(638 - 532) / 532] x 100
Subtract the new number by the original number
638 - 532 = 106
106 ÷ 532 = 0.19924812030075187
0.19924812030075187 x 100 = 19.92%