-0.89% is the change from 899 to 891
Calculation steps:
[( 891 - 899 ) ÷ 899] x 100 = -0.89%
Formula
Percentage change = [(891 - 899) / 899] x 100
Subtract the new number by the original number
891 - 899 = -8
-8 ÷ 899 = -0.008898776418242492
-0.008898776418242492 x 100 = -0.89%