Unanswered: Refer to Subreport result in Main Report
I have Subreport which lists Invoice Balances and Invoice Payments. At the end of this subreport is a simple sum which has [Balance]-[Paid] to return the ammout outstanding/in credit. This is called [credit].
What I want to do is display the result of [credit] on the ride side of the main report with the invoice totals. How do I refer to a subreport like this? I've tried
=[Reports].[SubReportName(which is Balance)].[Credit] and
=Reports![Invoice]![credit].Report[credit] which I got off the MS Support Page but neither work.