8.63% is the change from 452 to 491
Calculation steps:
[( 491 - 452 ) ÷ 452] x 100 = 8.63%
Formula
Percentage change = [(491 - 452) / 452] x 100
Subtract the new number by the original number
491 - 452 = 39
39 ÷ 452 = 0.08628318584070796
0.08628318584070796 x 100 = 8.63%