-89.3% is the change from 804 to 86
Calculation steps:
[( 86 - 804 ) ÷ 804] x 100 = -89.3%
Formula
Percentage change = [(86 - 804) / 804] x 100
Subtract the new number by the original number
86 - 804 = -718
-718 ÷ 804 = -0.8930348258706468
-0.8930348258706468 x 100 = -89.3%