For this use Tool #218 Closed Membership Report.  This provides a listing of each of the memberships that were closed, along with the specific closed account reason code for each.  If you do not want to print a report, but would like to use the information, you can select to "Export To File," choose Account Detail for Query, and then you can download the resulting file onto your PC and into an Excel spreadsheet using Tool #1375 Data Transfers (Upload or Download). 

NOTE: This report pulls the closed reason code from the New Account Code field (NEWACT) in the closed membership information table (MSHIST).  Remember that there is also a separate reason code on the -000 account suffix, stored in the Closed Reason Code field (RSNCDECLO) in the ACHIST1 closed account table.

Because the dashboards are used for big picture planning & analysis, this particular dashboard does not dive into the specific members for each of the reason codes listed.  This is where the report can complement what you see in the dashboard.