56.84% is the change from 285 to 447
Calculation steps:
[( 447 - 285 ) ÷ 285] x 100 = 56.84%
Formula
Percentage change = [(447 - 285) / 285] x 100
Subtract the new number by the original number
447 - 285 = 162
162 ÷ 285 = 0.5684210526315789
0.5684210526315789 x 100 = 56.84%