-1.22% is the change from 900 to 889
Calculation steps:
[( 889 - 900 ) ÷ 900] x 100 = -1.22%
Formula
Percentage change = [(889 - 900) / 900] x 100
Subtract the new number by the original number
889 - 900 = -11
-11 ÷ 900 = -0.012222222222222223
-0.012222222222222223 x 100 = -1.22%