41.94% is the change from 639 to 907
Calculation steps:
[( 907 - 639 ) ÷ 639] x 100 = 41.94%
Formula
Percentage change = [(907 - 639) / 639] x 100
Subtract the new number by the original number
907 - 639 = 268
268 ÷ 639 = 0.4194053208137715
0.4194053208137715 x 100 = 41.94%