8.39% is the change from 453 to 491
Calculation steps:
[( 491 - 453 ) ÷ 453] x 100 = 8.39%
Formula
Percentage change = [(491 - 453) / 453] x 100
Subtract the new number by the original number
491 - 453 = 38
38 ÷ 453 = 0.08388520971302428
0.08388520971302428 x 100 = 8.39%