30.05% is the change from 386 to 502
Calculation steps:
[( 502 - 386 ) ÷ 386] x 100 = 30.05%
Formula
Percentage change = [(502 - 386) / 386] x 100
Subtract the new number by the original number
502 - 386 = 116
116 ÷ 386 = 0.3005181347150259
0.3005181347150259 x 100 = 30.05%