38.39% is the change from 310 to 429
Calculation steps:
[( 429 - 310 ) ÷ 310] x 100 = 38.39%
Formula
Percentage change = [(429 - 310) / 310] x 100
Subtract the new number by the original number
429 - 310 = 119
119 ÷ 310 = 0.38387096774193546
0.38387096774193546 x 100 = 38.39%