Travel Expenses On 2 September 2022, Robyn travelled to Exeter to attend the Tax Research Network conference. The purpose of this conference is to discuss recent changes in tax law, present academic research and form collaborations with partners in industry. Robyn believes that the conference will prove very useful for keeping up-to-date with recent developments in the area and to network with professional colleagues. Robyn personally paid all of the following costs relating to the conference. The costs of the overseas trip are detailed below (all amounts are expressed in Australian dollars): $ cost of obtaining a 64-page Australian passport 240 travel insurance 180 business class economy airfare from Brisbane to London and back * 6,750 5 nights accommodation at the Woodbury Park Hotel and Golf Club 870 phone calls home to Mike and the kids from hotel phone in room 74 conference registration fee 1,100 meals for five days while attending the conference 335 taxi fares to and from airports 250 Train fare from London to Exeter (return) 240 "A" Reserve ticket to Hamilton 250 The dates of Robyns flight were departing Brisbane on 2 September 2022 and arriving in London on 3 September 2022, and then departing London on 8 September 2022 and arriving back in Brisbane on 10 September 2022. Robyn advises you that she has kept receipts for all of the above expenses and has kept the appropriate travel diary for taxation purposes. * It comes to your attention that Robyn has chosen to fly business class from Brisbane to London and back. Based on your research, you discover that the Qantas economy airfare from Brisbane to London and back at that time was only $3,520.