37.09% is the change from 453 to 621
Calculation steps:
[( 621 - 453 ) ÷ 453] x 100 = 37.09%
Formula
Percentage change = [(621 - 453) / 453] x 100
Subtract the new number by the original number
621 - 453 = 168
168 ÷ 453 = 0.3708609271523179
0.3708609271523179 x 100 = 37.09%