I wanted to use parenthesis for my data <30 can we do this using SAS VA Display rules
column1 columns2 columns3
ROW1 20 30 30
ROW2 30 (20) (20)
ROW3 40 (20) (20)
You can only apply a foreground or background color with the display rules.
You could suggest on the SAS Ballot that SAS VA support custom formats such as the one you are describing.