Please assume I am very dumb and explain all your decisions/reasoning/math formula choices and input origins. I really need to understand bond issuance and extinguishment. Thank you for your time!!!

On 2020 03 15 DIOMEDIC Inc. issued $35 m of 10-year, 7.02% bonds, priced to yield 7.15% and callable in the first five years at 100.4. The bonds carried a BBB rating and paid a semiannual coupon. 2023 03 15, after paying the coupon, DIOMEDIC refid the bonds with a new borrowing that had the same maturity, principal and coupon schedule as the first borrowing. For items # 1-4 on your memo, assume that transaction costs were not material. The new bonds were priced to yield 668 bps and carried a 6.75% coupon rate

1. Journal entry to record 2020 03 15 issuance

2. Journal entry to record 2020 09 15 interest accrual

3. What amount would DIOMEDIC report on its 2020 12 31 Balance Sheet for Bonds / P (net)?

4. Journal entry to record 2023 03 15 ReFi transactions

5. What amount would DIOMEDIC report on its 2023 12 31 Balance Sheet for Bonds / P (net)?

6. Questions, professional email Would DIOMEDIC report a gain or a loss on the transaction? From an economic perspective, was the company better off or less well off as a result of replacing the 2020 issue of bonds with the 2023 issue? What (if any) is the 2020 03 15 cash flow? Suppose the transaction costs had been 60 bps of the face amount of principal how would that have affected your reasoning? Explain your answers and cite evidence.