42.16% is the change from 638 to 907
Calculation steps:
[( 907 - 638 ) ÷ 638] x 100 = 42.16%
Formula
Percentage change = [(907 - 638) / 638] x 100
Subtract the new number by the original number
907 - 638 = 269
269 ÷ 638 = 0.4216300940438871
0.4216300940438871 x 100 = 42.16%