19.44% is the change from 355 to 424
Calculation steps:
[( 424 - 355 ) ÷ 355] x 100 = 19.44%
Formula
Percentage change = [(424 - 355) / 355] x 100
Subtract the new number by the original number
424 - 355 = 69
69 ÷ 355 = 0.19436619718309858
0.19436619718309858 x 100 = 19.44%