10.02% is the change from 409 to 450
Calculation steps:
[( 450 - 409 ) ÷ 409] x 100 = 10.02%
Formula
Percentage change = [(450 - 409) / 409] x 100
Subtract the new number by the original number
450 - 409 = 41
41 ÷ 409 = 0.10024449877750612
0.10024449877750612 x 100 = 10.02%