If the purpose of "Formula " is to conditionally suppress some section, (for example Group Footer #4), in the report based on the value of a global variable (blnSuppress) that is set in some other section (like detail c) then I would just
use the Conditional Suppress of GroupFooter#4 to say - - in crystal syntax - -
"Global blnSuppress As Boolean;
blnSuppress OR {Access.MODE}=3;