-99.16% is the change from 834 to 7
Calculation steps:
[( 7 - 834 ) ÷ 834] x 100 = -99.16%
Formula
Percentage change = [(7 - 834) / 834] x 100
Subtract the new number by the original number
7 - 834 = -827
-827 ÷ 834 = -0.9916067146282974
-0.9916067146282974 x 100 = -99.16%