Danny owns an electronics outlet in Dallas. This year he paid $400 to register for a four-day management conference in Chicago. After the course, Danny spent an additional day in Chicago sightseeing. Danny paid $1,200 in airfare and $900 for five nights lodging. During the trip, Danny also paid $200 a day for meals and $75 in cab fare for transportation to/from the conference hotel and the airport. What amount of these travel-related expenditures may Danny deduct as business expenses?