-89.83% is the change from 846 to 86
Calculation steps:
[( 86 - 846 ) ÷ 846] x 100 = -89.83%
Formula
Percentage change = [(86 - 846) / 846] x 100
Subtract the new number by the original number
86 - 846 = -760
-760 ÷ 846 = -0.8983451536643026
-0.8983451536643026 x 100 = -89.83%