Hillary considers herself a shrewd commodities investor. She bought a May cotton contract ( 50,000 pounds) at $0.6501 a pound, and later sold it at $0.6736 a pound. What were her profit and her return on invested capital if her initial margin was $1,250 and the size of a cotton futures contract is 50,000 pounds of colton? Hillary's profit is $ (Round to the nearest dollar.)