Sholegg Resurfacing plants to retain $125,000 of its income this year for reinvestment. Financial analysts have determined that the firm's after-tax cost of debt is 4.8 percent, its cost of internal equity is 9 percent, and its cost of external equity is 11.5 percent. Sholegg experts to finance capital budgeting projects so as to maintain its current capital structure, which consists of 55 percent debt. Sholegg has no preferred stock. What will Sholegg's marginal cost of capital be if its total capital budgeting needs are $300,000 for the year?