-99.19% is the change from 992 to 8
Calculation steps:
[( 8 - 992 ) ÷ 992] x 100 = -99.19%
Formula
Percentage change = [(8 - 992) / 992] x 100
Subtract the new number by the original number
8 - 992 = -984
-984 ÷ 992 = -0.9919354838709677
-0.9919354838709677 x 100 = -99.19%