Query just like Purchase Analysis Report

[amswain]

Purchasing Dept Does not like the Purchase Analysis Report because it does not show the Group.

I just need to write a query of the AP Invoices with the Posting Date Range and add the OCRG for Group Name , but in the Purchase analysis report the last column shows Total PU. I do not know what Total PU is , does anyone know what the Total PU is and how would i get that column