The total amount of per diem reimbursement on the first and last days of travel is capped at 75% of the daily Meals and Incidental Expenses (M&IE) per diem allowance, according to the location. See the Per Diem Rates on the U.S. General Services Administration (GSA) website for the breakfast, lunch, and dinner breakdowns for each day of travel.
When using Concur, you do not need to calculate this yourself because Concur will automatically calculate per diem according to the itinerary.
