3815376 - Why Is the Amtrak Booking Price Different in Concur Than the Fare Amount Displayed in the PNR Remarks?

In the PNR, Amtrak standard remarks contain the price 136.80:

161.H-***** AMTRAK TRAIN INFO ****
162.H-AMTRAK DURATION 1 - 48
163.H-AMTRAK SEGMENT 1 ENDPOINTS - WIL TO BAL
164.H-AMTRAK DURATION 2 - 42
165.H-AMTRAK SEGMENT 2 ENDPOINTS - BAL TO WIL
166.H-AMTRAK TICKET BASE FARE - 136.80/136.80
167.H-AMTRAK TOTAL PRICE - 136.80/136.80
168.H-AMTRAK CURRENCY CODE - USD/USD
169.H-AMTRAK TICKET STATE - PREPAID
170.H-AMTRAK TICKET DELIVERY MODE - EML
171.H-CB/ALT/FLIGHT CHANGES MUST BE MADE
172.H-CB/ALT/ON AMTRAK TO PNR 1DB3BD

In this case, the price is Concur trip's library is 152 USD. 

TMCs may notice a discrepancy between the Amtrak fare amount displayed in the PNR remarks and the price shown in the Concur trip itinerary. The price displayed in Concur reflects the final amount paid by the passenger, which may differ from the fare amount initially returned in the Amtrak remarks. These differences can impact TMC invoicing and reconciliation processes. , KBA , CON-SRV-TRV-RAL , Rail , Problem