Colt Inc. is planning to use retained earnings to finance anticipated capital expenditures. The beta coefficient for Colts stock is 1.15, the risk-free rate of interest is 8.5 percent, and the market return is estimated at 12.4%. If a new issue of common stock was used in this model, the flotation costs would be 7%. By using the Capital Asset Pricing Model equation (CAPM) equation [R = RF + Beta (RM - RF)], the cost of using retained earnings to finance the capital expenditures is: