57.19% is the change from 285 to 448
Calculation steps:
[( 448 - 285 ) ÷ 285] x 100 = 57.19%
Formula
Percentage change = [(448 - 285) / 285] x 100
Subtract the new number by the original number
448 - 285 = 163
163 ÷ 285 = 0.5719298245614035
0.5719298245614035 x 100 = 57.19%