-99.04% is the change from 833 to 8
Calculation steps:
[( 8 - 833 ) ÷ 833] x 100 = -99.04%
Formula
Percentage change = [(8 - 833) / 833] x 100
Subtract the new number by the original number
8 - 833 = -825
-825 ÷ 833 = -0.9903961584633854
-0.9903961584633854 x 100 = -99.04%