In: Finance
| Coupon rate | 3.54% | 6.10% |
| Maturity (yrs) | 4 | 23 |
| Par value | $3.8 million | $8.1 million |
| Price | 103% | 95% |
δelta Corp. has two bond issues outstanding as described in the table above. Both bonds pay interest semiannually. δelta Corp.'s tax rate is 39%. What is the firm's weighted average aftertax cost of debt?
Please refer to below spreadsheet for calculation and answer. Cell reference also provided.

Cell reference -
