PI traveled to a conference and included a receipt for a hotel stay for two as this person elected to bring a spouse along. The hotel charged extra for two people. This was a non-conference hotel as all conference hotels were booked. As this was a large conference several others in the division attended the conference as well and a price comparison was done for the other travelers. While none of them exceeded the 150% allowed an reimbursement amount was determined with documentation. Another option would be to contact the hotel and get the rate for occupancy of one. This would have to consider variables such as day of week, season, where the hotel was booked, directly or on-line, etc.