Reports :: Subform Only Showing Last Group Record

I have one query that the main form is based on and another query the subform is based on.

I linked the subform to the main form by a common field "Branch"

My main form displays Grouped Employee overhead totals based on Branch

Example:
Branch 1 Employee overhead cost...........15,000.00
Branch 2 Employee overhead cost...........25,000.00

The subform displays grouped branch expense overhead totals based on Branch

Example:
Branch 1 Branch expense...........125,000.00
Branch 2 Branch expense...........155,000.00

I am trying to display both the employee overhead total and branch expense in the Branch Header of the mainform.

Example:
Branch 1 Employee Overhead...15,000.00 Branch Expense...125,000.00
Branch 2 Employee Overhead...25,000.00 Branch Expense...155,000.00

I tried using an IIF statement in a text box in the mainform branch header section to return the branch expense if subform branch = mainform branch.......When I run the report I get all of the Employee overhead but only the last record for Branch 2 branch expense displays.

Example:
Branch 1 Employee Overhead..15,000.00
Branch 2 Employee Overhead..25,000.00 Branch Expense...155,000.00

Then, I tried just putting a text box in the main branch header subreportName.Report.TotalField

When I run the report it returns all employee overhead with the Branch 2 total for every branch in the mainform...

Example:
Branch 1 Employee Overhead..15,000.00 Branch Expense...155,000.00
Branch 2 Employee Overhead..25,000.00 Branch Expense...155,000.00