-8.69% is the change from 990 to 904
Calculation steps:
[( 904 - 990 ) ÷ 990] x 100 = -8.69%
Formula
Percentage change = [(904 - 990) / 990] x 100
Subtract the new number by the original number
904 - 990 = -86
-86 ÷ 990 = -0.08686868686868687
-0.08686868686868687 x 100 = -8.69%