-88.68% is the change from 804 to 91
Calculation steps:
[( 91 - 804 ) ÷ 804] x 100 = -88.68%
Formula
Percentage change = [(91 - 804) / 804] x 100
Subtract the new number by the original number
91 - 804 = -713
-713 ÷ 804 = -0.8868159203980099
-0.8868159203980099 x 100 = -88.68%