-0.23% is the change from 869 to 867
Calculation steps:
[( 867 - 869 ) ÷ 869] x 100 = -0.23%
Formula
Percentage change = [(867 - 869) / 869] x 100
Subtract the new number by the original number
867 - 869 = -2
-2 ÷ 869 = -0.0023014959723820483
-0.0023014959723820483 x 100 = -0.23%