... functions by using VBA. With all the functions available in Excel and VBA, you may wonder why you wouldever need to create new functions. The answer: to simplify your work. With a bitof planning, ... func-tion arguments. Excel 2002 displays the Function Arguments dialog box in place of the FormulaPalette dialog box, used in previous versions.Describing your function with VBA codeAnother way ... Is >= 40 000: Commission = Sales * Tier4End SelectEnd FunctionAfter you enter this function in a VBA module, you can use it in a worksheet for-mula or call the function from other VBA procedures.Entering...