-74.55% is the change from 389 to 99
Calculation steps:
[( 99 - 389 ) ÷ 389] x 100 = -74.55%
Formula
Percentage change = [(99 - 389) / 389] x 100
Subtract the new number by the original number
99 - 389 = -290
-290 ÷ 389 = -0.7455012853470437
-0.7455012853470437 x 100 = -74.55%