Great Lakes Packing has two bond issues outstanding. The first issue has a coupon rate of $3\mathrm{.}88$ percent, a par value of $$2,000$ per bond, matures in $5$ years, has a total face value of $$5\mathrm{.}5$ million, and is quoted at $102$ percent of face value. The second issue has a coupon rate of $6\mathrm{.}65$ percent, a par value of $$1,000$ per bond, matures in $20$ years, has a total face value of $$9\mathrm{.}8$ million, and is quoted at $109$ percent of face value. Both bonds pay interest semiannually. The company's tax rate is $25$ percent. What is the firm's weighted average aftertax cost of debt? USE A CALCULATOR IF POSSIBLE AND SHOW ALL THE STEPS!!!