-89.68% is the change from 804 to 83
Calculation steps:
[( 83 - 804 ) ÷ 804] x 100 = -89.68%
Formula
Percentage change = [(83 - 804) / 804] x 100
Subtract the new number by the original number
83 - 804 = -721
-721 ÷ 804 = -0.8967661691542289
-0.8967661691542289 x 100 = -89.68%