-89.55% is the change from 804 to 84
Calculation steps:
[( 84 - 804 ) ÷ 804] x 100 = -89.55%
Formula
Percentage change = [(84 - 804) / 804] x 100
Subtract the new number by the original number
84 - 804 = -720
-720 ÷ 804 = -0.8955223880597015
-0.8955223880597015 x 100 = -89.55%