Philip owns and operates a gas station. Philip works 40 hours a week managing the station but doesn't draw a salary. He could earn $100 a week doing the same work for Terrance. The station owes the bank $100,000 and Philip has invested $100,000 of his own money. If Philip's accounting profits are $1,000 per week while the interest on his bank debt is $200 per week, the business's economic profits are