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perform calculation

Question asked by TinaBrown on Jan 21, 2014
Latest reply on Jan 21, 2014 by SteveMartino


perform calculation


     If I have a check box ticked yes I would like my database to perform a calculation - can someone please let me know how to set this up.

     I'm doing an invoice and I have a checkbox yes/no for if tax is to be added.
     If check box is ticked yes I need the total field to add 10% tax to my invoice total.
     If my checkbox is ticked no then no tax is to be added to my invoice total.

     Thank you for your help.