41.22% is the change from 638 to 901
Calculation steps:
[( 901 - 638 ) ÷ 638] x 100 = 41.22%
Formula
Percentage change = [(901 - 638) / 638] x 100
Subtract the new number by the original number
901 - 638 = 263
263 ÷ 638 = 0.4122257053291536
0.4122257053291536 x 100 = 41.22%