od Cost of debt using the approximation formula For the following $1,000-par-value bond, assuming anal interese payment and a 27% tax rate, calculate the after-tax cost to maturity using the approximation formula. (Click on the icon here in order to copy the contents of the data table below into a spreadthoot.) Discount (-) or Coupon Life Underwriting fee premium (+) interest rate 5 years $20 $50 8% The after-tax cost of financing using the approximation formula is 9.02%. (Round to two decimal places)