-99.06% is the change from 849 to 8
Calculation steps:
[( 8 - 849 ) ÷ 849] x 100 = -99.06%
Formula
Percentage change = [(8 - 849) / 849] x 100
Subtract the new number by the original number
8 - 849 = -841
-841 ÷ 849 = -0.9905771495877503
-0.9905771495877503 x 100 = -99.06%