50.13% is the change from 389 to 584
Calculation steps:
[( 584 - 389 ) ÷ 389] x 100 = 50.13%
Formula
Percentage change = [(584 - 389) / 389] x 100
Subtract the new number by the original number
584 - 389 = 195
195 ÷ 389 = 0.5012853470437018
0.5012853470437018 x 100 = 50.13%