On January 1, 2021, Yipin Company purchased 6% bonds having a maturity value of $325,000, for $281,262.30. The bonds provide the bondholders with a 9% yield. They are dated January 1, 2020, and mature January 1, 2027, with interest receivable January 1 of each year. Yipin Company uses the effective-interest method to allocate unamortized discount or premium. The bonds are classified in the held-to-maturity category. Required: 1) Prepare the journal entry at the date of the bond purchase. 2) Prepare a bond amortization schedule. 3) Prepare the journal entry to record the interest revenue and the amortization on December 31, 2021. 4) Prepare the journal entry to record the interest revenue and the amortization on December 31, 2022.