If the value entered is static and will never be used for calculations, then the previous response by (?) will suffice. HOWEVER, if your data is stored in a table field that is of type NUMBER, you will not be able to append the %, and you shouldn't... Keep the value in its native format (Number - Single) so it can be easily pulled to perform calculations when needed for forms/reports. If you need to show the value on a form/report with %, only then using the previous example by (?) for display purposes.