50% is the change from 286 to 429
Calculation steps:
[( 429 - 286 ) ÷ 286] x 100 = 50%
Formula
Percentage change = [(429 - 286) / 286] x 100
Subtract the new number by the original number
429 - 286 = 143
143 ÷ 286 = 0.5
0.5 x 100 = 50%
Example