On Monday, Harvey Leonard travels from Chicago to New York on a business trip. The trip lasts five days. Three days of the trip are spent conducting business activities and two days are spent on personal sightseeing activities. Harvey incurs $1500 in airfare costs in going to and returning from New York, $49 a day in expenses for meals, and $100 a day for lodging while in New York. Assume Harvey is self-employed. What amount is deductible on Harvey's tax return for travel expenses related to the airfare? [For your answer, please use whole number and ignore the dollar sign and the comma.]