-2% is the change from 899 to 881
Calculation steps:
[( 881 - 899 ) ÷ 899] x 100 = -2%
Formula
Percentage change = [(881 - 899) / 899] x 100
Subtract the new number by the original number
881 - 899 = -18
-18 ÷ 899 = -0.020022246941045607
-0.020022246941045607 x 100 = -2%