-99.04% is the change from 835 to 8
Calculation steps:
[( 8 - 835 ) ÷ 835] x 100 = -99.04%
Formula
Percentage change = [(8 - 835) / 835] x 100
Subtract the new number by the original number
8 - 835 = -827
-827 ÷ 835 = -0.9904191616766467
-0.9904191616766467 x 100 = -99.04%