47.9% is the change from 286 to 423
Calculation steps:
[( 423 - 286 ) ÷ 286] x 100 = 47.9%
Formula
Percentage change = [(423 - 286) / 286] x 100
Subtract the new number by the original number
423 - 286 = 137
137 ÷ 286 = 0.479020979020979
0.479020979020979 x 100 = 47.9%