40.53% is the change from 454 to 638
Calculation steps:
[( 638 - 454 ) ÷ 454] x 100 = 40.53%
Formula
Percentage change = [(638 - 454) / 454] x 100
Subtract the new number by the original number
638 - 454 = 184
184 ÷ 454 = 0.4052863436123348
0.4052863436123348 x 100 = 40.53%