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 $0\mathrm{.}88,$ the$$ risk$-$free rate is $3\mathrm{.}9\%,$ and the market risk premium is $5\mathrm{.}1\%.$ If your$$ firm's project is$$ all$-$equity financed, estimate its cost of capital.