-89.8% is the change from 794 to 81
Calculation steps:
[( 81 - 794 ) ÷ 794] x 100 = -89.8%
Formula
Percentage change = [(81 - 794) / 794] x 100
Subtract the new number by the original number
81 - 794 = -713
-713 ÷ 794 = -0.8979848866498741
-0.8979848866498741 x 100 = -89.8%