What portion of meals can be deducted?

zero was wrong?

Problem 6-41 (LO 6-1, 6-2) Charles, a self-employed real estate agent, attended a conference on the impact of some new building codes on real estate investments. His unreimbursed expenses were as follows: Airfare Lodging Meals Tuition and fees $525 320 112 692 How much can Charles deduct on his return? $ $ 525 320 Airfare Lodging Meals Tuition and Fees Total $ $ 692 1,537