Dunder$-$Mifflin, Inc. $($DMI$)$ is selling $600,000$ bonds to raise money for the publication of new magazines in the coming year. The bond will pay a coupon rate of $13\mathrm{.}5\%$ with semiannual payments and will mature in $30$ years. Its par value is $$100.$ What is the cost of debt to DMI if the bonds raise the following amounts $($ignoring issuing costs$)?$$$58,428,000$$$53,760,000$$$63,300,000$$$75,144,000$