154.5% is the change from 389 to 990
Calculation steps:
[( 990 - 389 ) ÷ 389] x 100 = 154.5%
Formula
Percentage change = [(990 - 389) / 389] x 100
Subtract the new number by the original number
990 - 389 = 601
601 ÷ 389 = 1.544987146529563
1.544987146529563 x 100 = 154.5%