41.54% is the change from 638 to 903
Calculation steps:
[( 903 - 638 ) ÷ 638] x 100 = 41.54%
Formula
Percentage change = [(903 - 638) / 638] x 100
Subtract the new number by the original number
903 - 638 = 265
265 ÷ 638 = 0.4153605015673981
0.4153605015673981 x 100 = 41.54%