-99.08% is the change from 869 to 8
Calculation steps:
[( 8 - 869 ) ÷ 869] x 100 = -99.08%
Formula
Percentage change = [(8 - 869) / 869] x 100
Subtract the new number by the original number
8 - 869 = -861
-861 ÷ 869 = -0.9907940161104718
-0.9907940161104718 x 100 = -99.08%