29.05% is the change from 389 to 502
Calculation steps:
[( 502 - 389 ) ÷ 389] x 100 = 29.05%
Formula
Percentage change = [(502 - 389) / 389] x 100
Subtract the new number by the original number
502 - 389 = 113
113 ÷ 389 = 0.29048843187660667
0.29048843187660667 x 100 = 29.05%