This set of problems is designed to be calculated using the Excel or financial calculator. Do not use financial tables to calculate these problems. Do not use algebraic formulas to calculate these problems.

Great Seneca Inc. sells $100 million worth of 27-year to maturity 13.39% annual coupon bonds. The net proceeds (proceeds after flotation costs) are $972 for each $1,000 bond. The firm's marginal tax rate is 35%. What is the after-tax cost of capital for this debt financing?

Round the answer to two decimal places in percentage form. (Write the percentage sign in the "units" box)

You should use Excel or financial calculator.