. . 3 S O You buy a Standard & Poor's 500 Index futures contract at 3,200.40. The multiplier is 250. The margin is $21,000. The margin maintenance requirement is set at $17.250. If the contract closes out at 3,230.70, what is your dollar return? What is your percent return on margin? O 43.91% 0 36.07% 25.24% 2.52%