-89.35% is the change from 798 to 85
Calculation steps:
[( 85 - 798 ) ÷ 798] x 100 = -89.35%
Formula
Percentage change = [(85 - 798) / 798] x 100
Subtract the new number by the original number
85 - 798 = -713
-713 ÷ 798 = -0.893483709273183
-0.893483709273183 x 100 = -89.35%