41.46% is the change from 451 to 638
Calculation steps:
[( 638 - 451 ) ÷ 451] x 100 = 41.46%
Formula
Percentage change = [(638 - 451) / 451] x 100
Subtract the new number by the original number
638 - 451 = 187
187 ÷ 451 = 0.4146341463414634
0.4146341463414634 x 100 = 41.46%