-86.81% is the change from 819 to 108
Calculation steps:
[( 108 - 819 ) ÷ 819] x 100 = -86.81%
Formula
Percentage change = [(108 - 819) / 819] x 100
Subtract the new number by the original number
108 - 819 = -711
-711 ÷ 819 = -0.8681318681318682
-0.8681318681318682 x 100 = -86.81%