Absolute Corporation currently has $$50$ million in liabilities and common equity in combination. The firm has no preferred stock. The CFO constructed the following table to show the CEO the effect of changing the firm's capital structure.

Amount of Debt

in the Capital Earnings per Market Price per

Structure Share $($EPS$)$ Share $($P$0)$

$ $15,000,000$ $ $6\mathrm{.}00$ $ $105\mathrm{.}65$

$20,000,0007\mathrm{.}00112\mathrm{.}05$

$25,000,0007\mathrm{.}50114\mathrm{.}00$

According to this information, what is Absolute's optimal capital structure? Explain your answer. Round your answer to the nearest whole number.

The optimal capital structure contains

$\%$ of debt because it

$-$Select$-$

$.$