Applying First Last Per Diem Rate correctly for multiple locations in one trip duration

Summary:

The first/last day rate is being reflected on the report by location versus the overall duration of the trip.

Content (required):

Per Diem with First/Last Day with multiple locations in one week (a common occurrence with the business travelers)-

Example:

Technician travels to NYC Monday and Tuesday, ATL Wed, Thurs, Friday

NYC Rate: First/Last Day $50 All other days $75

ATL Rate: First/Last Day $25 All other days $40

What we're seeing: First/Last Day rate applied to specific location, not overall trip duration

Mon NYC $50 Tues NYC $50 Wednesday ATL $25 Thurs ATL $40 Friday ATL $25 

What we need/expect: First/Last Day only on first/last day of the overall trip, not specific location