-99.06% is the change from 854 to 8
Calculation steps:
[( 8 - 854 ) ÷ 854] x 100 = -99.06%
Formula
Percentage change = [(8 - 854) / 854] x 100
Subtract the new number by the original number
8 - 854 = -846
-846 ÷ 854 = -0.990632318501171
-0.990632318501171 x 100 = -99.06%