50.39% is the change from 389 to 585
Calculation steps:
[( 585 - 389 ) ÷ 389] x 100 = 50.39%
Formula
Percentage change = [(585 - 389) / 389] x 100
Subtract the new number by the original number
585 - 389 = 196
196 ÷ 389 = 0.5038560411311054
0.5038560411311054 x 100 = 50.39%