49.65% is the change from 286 to 428
Calculation steps:
[( 428 - 286 ) ÷ 286] x 100 = 49.65%
Formula
Percentage change = [(428 - 286) / 286] x 100
Subtract the new number by the original number
428 - 286 = 142
142 ÷ 286 = 0.4965034965034965
0.4965034965034965 x 100 = 49.65%