38.71% is the change from 638 to 885
Calculation steps:
[( 885 - 638 ) ÷ 638] x 100 = 38.71%
Formula
Percentage change = [(885 - 638) / 638] x 100
Subtract the new number by the original number
885 - 638 = 247
247 ÷ 638 = 0.3871473354231975
0.3871473354231975 x 100 = 38.71%