You purchase 100 shares of CAB Stock at $20.00 per share using your margin account. The initial equity margin requirement is 50% and you utilize all the debt allowed for the transaction. Your position carries a maintenance (or minimum) equity margin position of 30%. After several days of the purchase, you notice the price of CAB Stock is now $21.00 per share. Assume you close your position and your interest cost is $0.00. What is the return on your investment