-99.11% is the change from 899 to 8
Calculation steps:
[( 8 - 899 ) ÷ 899] x 100 = -99.11%
Formula
Percentage change = [(8 - 899) / 899] x 100
Subtract the new number by the original number
8 - 899 = -891
-891 ÷ 899 = -0.9911012235817576
-0.9911012235817576 x 100 = -99.11%