In 2023, the CEO of Crimson, Inc., entertains 12 clients at a skybox in Memorial Stadium for a single athletic event during the year. Substantive business discussions occurred at various times during the event. The box cost $2,200 per event and seats 14 people. (The cost of a regular, nonluxury box seat at Memorial ranges from $45 to $90.) Refreshments served during the event cost $1,470. How much of these costs may Crimson deduct?