Hillary considers herself a shrewd commodities investor. She bought a May cotton contract ( 50,000 pounds) at $0.6846 a pound, and later sold it at $0.7738 a pound. What were her profi and her return on invested cepital it her initial margin was $1.310 and the size of a cotton futures contract is 50.000 pounds of cotton? Hillary's prola is s. (Round to the nearest dollar.)