Lets say I have a function like the simple one I have posted below. When I call the function is there a way to call it specifically depending on which variable is given?

Code:
    Function CalcMeals() As Decimal
        'Submit Var values to be used in the function
        decDays = CDec(cboDays.SelectedItem().ToString)
        decMeals = CDec(txtMeals.Text.ToString) * decDays
        decMealA = CDec(conMEALS * decDays)
        decMealCost = CDec(decMeals - decMealA)
        decMealSaved = CDec(decMealA - decMeals)

        'Determine whether to return what is owed or what is 
        'reimbursed.
        If decMeals > decMealA Then
            Return decMealCost
        ElseIf decMeals < decMealA Then
            Return decMealSaved
        End If
    End Function
I can't really lay out what I mean, best way to say is that I want to direct the amount into different areas of the form depending on what variable is returned to me. If decMealSaved is returned I want it to be added in what is exempt and if decMealCost is returned then I want it to be added in what is owed to the company. I hope I'm getting my point across...

Thanks if you can help.