-0.23% is the change from 881 to 879
Calculation steps:
[( 879 - 881 ) ÷ 881] x 100 = -0.23%
Formula
Percentage change = [(879 - 881) / 881] x 100
Subtract the new number by the original number
879 - 881 = -2
-2 ÷ 881 = -0.0022701475595913734
-0.0022701475595913734 x 100 = -0.23%