-99.05% is the change from 844 to 8
Calculation steps:
[( 8 - 844 ) ÷ 844] x 100 = -99.05%
Formula
Percentage change = [(8 - 844) / 844] x 100
Subtract the new number by the original number
8 - 844 = -836
-836 ÷ 844 = -0.990521327014218
-0.990521327014218 x 100 = -99.05%