Walter Corp.'s outstanding bonds have a 5.8% coupon, 5 years left until maturity, and are currently priced at $974.67. The firm's marginal tax rate is 22%. Walter's after-tax cost of debt is %. NOTE: As usual, assume that the coupon payments occur semiannually. Margin of error for correct responses: +/- .05(\%) . Rounding and Formatting instructions: Do not enter dollar signs, percentsigns, commas, X, or any words in your response. Do not round any intermediate work, but round your * final* response to 2 decimal places (example: if your answer is 12.3456,12.3456%, or $12.3456, you should enter 12.35)