P 13-22 (similar to) Question Help Your firm is planning to invest in an automated packaging plant. Harburtin Industries is an all-equity firm that specializes in this business. Suppose Harburtin's equity beta is 0.88, the risk-free rate is 4.1%, and the market risk premium is 5%. If your firm's project is all-equity financed, estimate its cost of capital. The cost of capital is %. (Round to one decimal place.)