-89.22% is the change from 798 to 86
Calculation steps:
[( 86 - 798 ) ÷ 798] x 100 = -89.22%
Formula
Percentage change = [(86 - 798) / 798] x 100
Subtract the new number by the original number
86 - 798 = -712
-712 ÷ 798 = -0.8922305764411027
-0.8922305764411027 x 100 = -89.22%