Morales Publishing's tax rate is $40\%,$ its beta is $0\mathrm{.}8,$ and it uses no debt. However, the CFO is considering moving to a capital structure funded by debt, which produces a beta of $1\mathrm{.}5.$ If the risk$-$free rate is $3\%$ and the market risk premium is $7\%,$ by how much would the capital structure shift change the firm's cost of equity $($in percent$)?$