40.4% is the change from 302 to 424
Calculation steps:
[( 424 - 302 ) ÷ 302] x 100 = 40.4%
Formula
Percentage change = [(424 - 302) / 302] x 100
Subtract the new number by the original number
424 - 302 = 122
122 ÷ 302 = 0.40397350993377484
0.40397350993377484 x 100 = 40.4%