42.31% is the change from 286 to 407
Calculation steps:
[( 407 - 286 ) ÷ 286] x 100 = 42.31%
Formula
Percentage change = [(407 - 286) / 286] x 100
Subtract the new number by the original number
407 - 286 = 121
121 ÷ 286 = 0.4230769230769231
0.4230769230769231 x 100 = 42.31%