42.46% is the change from 285 to 406
Calculation steps:
[( 406 - 285 ) ÷ 285] x 100 = 42.46%
Formula
Percentage change = [(406 - 285) / 285] x 100
Subtract the new number by the original number
406 - 285 = 121
121 ÷ 285 = 0.4245614035087719
0.4245614035087719 x 100 = 42.46%