-99.16% is the change from 835 to 7
Calculation steps:
[( 7 - 835 ) ÷ 835] x 100 = -99.16%
Formula
Percentage change = [(7 - 835) / 835] x 100
Subtract the new number by the original number
7 - 835 = -828
-828 ÷ 835 = -0.9916167664670659
-0.9916167664670659 x 100 = -99.16%