Need Formcalc "If function" help

Hello!

To the point: I am trying to create a from wherein the user can make a selection form a drop box of various categories of cabins (I.e. "4B Inside"), and, depending on what the user selects, an output of a certain $ amount will be placed in another field. I have scripted, into the field where I would like the result, the following (no subforms are used, the language is formcalc, so everything should be on the same heriarchal level, language is formcalc):

If (DropDownList1==4) then (Cell2==459.00) elseif (DropDownList1==6) then (Cell2==659.00) endif

This string does not produce an error when tested in reader or within Livecycle, however, it ALWAYS returns the result "0" in Cell2, irrespective of which I choose (4 or 6).

Additionally, if I attempt to refer to DropDownList1 as "4B Inside" in the string, and name the choice in DropDownList1 thusly, I receive a script error where text, as opposed to numbers, begin. Is this function not possible in formcalc, or is it referenced as something other than "If"?