Territory related report‏

Territory related report‏

I am facing difficulties to create the following similar reports:

  • Average Order (Invoice) Value by Territory
  • Total (SUM or Value of all Invoices) Invoices by Territory
  • Monthly sales by Category (this is a Territory field)

All the above three reports are directly related to the Territory.

Please note that my clients does not use Potentials module.

To create the 3 reports - I have tried to make roll-up-summary of Grand Total in Invoices module and store those values in Accounts and Contacts module. I have not found the solution.

I will appreciate your advice. You can also suggest me alternate solution so that I can achieve the above 3 reports.