Josh Rink considers himself a shrewd commodities investor. Not long ago he bought one July cotton contract at

$ 0.52$0.52

a pound, and he recently sold it at

$ 0.53$0.53

a pound. How much profit did he make? What was his return on invested capital if he had to put up a

$ 1 comma 320$1,320

initial deposit? (There are 50,000 pounds in one contract for cotton.)