-88.81% is the change from 804 to 90
Calculation steps:
[( 90 - 804 ) ÷ 804] x 100 = -88.81%
Formula
Percentage change = [(90 - 804) / 804] x 100
Subtract the new number by the original number
90 - 804 = -714
-714 ÷ 804 = -0.8880597014925373
-0.8880597014925373 x 100 = -88.81%