41.39% is the change from 389 to 550
Calculation steps:
[( 550 - 389 ) ÷ 389] x 100 = 41.39%
Formula
Percentage change = [(550 - 389) / 389] x 100
Subtract the new number by the original number
550 - 389 = 161
161 ÷ 389 = 0.4138817480719794
0.4138817480719794 x 100 = 41.39%