49.82% is the change from 285 to 427
Calculation steps:
[( 427 - 285 ) ÷ 285] x 100 = 49.82%
Formula
Percentage change = [(427 - 285) / 285] x 100
Subtract the new number by the original number
427 - 285 = 142
142 ÷ 285 = 0.4982456140350877
0.4982456140350877 x 100 = 49.82%