-79.69% is the change from 389 to 79
Calculation steps:
[( 79 - 389 ) ÷ 389] x 100 = -79.69%
Formula
Percentage change = [(79 - 389) / 389] x 100
Subtract the new number by the original number
79 - 389 = -310
-310 ÷ 389 = -0.7969151670951157
-0.7969151670951157 x 100 = -79.69%