46.39% is the change from 638 to 934
Calculation steps:
[( 934 - 638 ) ÷ 638] x 100 = 46.39%
Formula
Percentage change = [(934 - 638) / 638] x 100
Subtract the new number by the original number
934 - 638 = 296
296 ÷ 638 = 0.46394984326018807
0.46394984326018807 x 100 = 46.39%