40.84% is the change from 453 to 638
Calculation steps:
[( 638 - 453 ) ÷ 453] x 100 = 40.84%
Formula
Percentage change = [(638 - 453) / 453] x 100
Subtract the new number by the original number
638 - 453 = 185
185 ÷ 453 = 0.4083885209713024
0.4083885209713024 x 100 = 40.84%