30.39% is the change from 385 to 502
Calculation steps:
[( 502 - 385 ) ÷ 385] x 100 = 30.39%
Formula
Percentage change = [(502 - 385) / 385] x 100
Subtract the new number by the original number
502 - 385 = 117
117 ÷ 385 = 0.3038961038961039
0.3038961038961039 x 100 = 30.39%