-96.43% is the change from 869 to 31
Calculation steps:
[( 31 - 869 ) ÷ 869] x 100 = -96.43%
Formula
Percentage change = [(31 - 869) / 869] x 100
Subtract the new number by the original number
31 - 869 = -838
-838 ÷ 869 = -0.9643268124280783
-0.9643268124280783 x 100 = -96.43%