Cost of debt with fees. Kenny Enterprises will issue a bond with a par value of $$1,000,$ a maturity of twenty years, and a coupon rate of $7\mathrm{.}4\%$ with semiannual payments, and will use an investment bank that charges $$25$ per bond for its services. What is the cost of debt for Kenny Enterprises at the following market prices?

a$.$ $$915\mathrm{.}70$

b$.$ $$1,005\mathrm{.}61$

c$.$ $$1,060\mathrm{.}05$

d$.$ $$1,211,62$

a$.$ What is the cost of debt for Kenny Enterprises at a market price of $$915\mathrm{.}70?$

$($Round to two decimal places.$)$