What are the calculations for this answer?

Belhaven

MBA 612

How did you get the answer for Exercise 10-2

Market Rate

1. amount due at maturity 6% $794,400, 8% $768,400 10% $745,800

2. cash interest will be paid every six months 6% $9,430 8%$9,260 10% $9,090

3. the bond issuance price 6% $573,400 8% $499,900 10% $438,300