36.78% is the change from 454 to 621
Calculation steps:
[( 621 - 454 ) ÷ 454] x 100 = 36.78%
Formula
Percentage change = [(621 - 454) / 454] x 100
Subtract the new number by the original number
621 - 454 = 167
167 ÷ 454 = 0.36784140969163
0.36784140969163 x 100 = 36.78%