The general assignment is: corporate management report in which you present a valuation model for a proposed new issuance of corporate bonds with a face value of 70 million dollars. The report should include numerical illustrations within tables and graphics, along with discussions that guide the manager through the illustrations and graphics. The valuation model should be hypothetical.

Here is what I came up with with some help from an online Bond calculator:

With a corporate bond face value of $70 million, an assumed coupon rate of 5.7%, the length of the time of debt at 10 years, therefore, the discount rate is for 10 years. The coupon payments are semiannual. All else being equal, the present value of the cash flow is calculated in with the following formulas:

PV paid at maturity = Face value/(Market Rate/100)^number of payments: $33,522,463.94.

Present value of interest payments = Payment value * (1 - (Market rate/100)^-number of payments)/number of payments) = $27,722,927.40.

Present value of bond = Present value paid at maturity + present value of interest payments: $61,245,391.34. Since the coupon interest are paid semiannually (twice a year), the annual coupon rate of 5.7% which translates to $3,990,000 becomes the adjusted coupon rate of $1,995,000. To prove this is true multiply 0.057 * $70,000,000 = $3,990,000 which is an annual coupon rate of 5.7% would provide, then divide: $3,990,000/2 = $1,995,000.

I want to make sure I can show all my work from PV paid at maturity, Present value of interest payments and present value of bond. I partially explain and show work, but I need to fully understand and 100% explain. Ty.