38.99% is the change from 454 to 631
Calculation steps:
[( 631 - 454 ) ÷ 454] x 100 = 38.99%
Formula
Percentage change = [(631 - 454) / 454] x 100
Subtract the new number by the original number
631 - 454 = 177
177 ÷ 454 = 0.3898678414096916
0.3898678414096916 x 100 = 38.99%