Tom borrowed​ $40,000 from his parents to open a donut stand. He agrees to pay his parents a​ 5% yearly return on the money they lent him. His other yearly fixed costs equal​ $10,000. His variable costs equal​ $25,000. He sold​ 40,000 dozen donuts during the year at a price of​ $2.00 per dozen. ​Tom's total fixed costs equal: