49.22% is the change from 638 to 952
Calculation steps:
[( 952 - 638 ) ÷ 638] x 100 = 49.22%
Formula
Percentage change = [(952 - 638) / 638] x 100
Subtract the new number by the original number
952 - 638 = 314
314 ÷ 638 = 0.49216300940438873
0.49216300940438873 x 100 = 49.22%