Today, you are purchasing 100 shares of stock on margin. The purchase price per share is $40. The initial margin requirement is 70 percent and the maintenance margin is 30 percent. The call money rate is 8.5 percent and your broker charges you 1.5 percent over that rate on the margin loan. What will your rate of return be if you sell your shares one year from now for $45.40 a share? Ignore dividends.