156.81% is the change from 389 to 999
Calculation steps:
[( 999 - 389 ) ÷ 389] x 100 = 156.81%
Formula
Percentage change = [(999 - 389) / 389] x 100
Subtract the new number by the original number
999 - 389 = 610
610 ÷ 389 = 1.5681233933161953
1.5681233933161953 x 100 = 156.81%