-90.54% is the change from 846 to 80
Calculation steps:
[( 80 - 846 ) ÷ 846] x 100 = -90.54%
Formula
Percentage change = [(80 - 846) / 846] x 100
Subtract the new number by the original number
80 - 846 = -766
-766 ÷ 846 = -0.9054373522458629
-0.9054373522458629 x 100 = -90.54%