Sheffield Co. sells $413,000 of 12% bonds on June 1, 2017. The bonds pay interest on December 1 and June 1. The due date of the bonds is June 1, 2021. The bonds yield 10%. On October 1, 2018, Sheffield buys back $128,030 worth of bonds for $134,030 (includes accrued interest). Prepare a bond amortization schedule using the effective-interest method for discount and premium amortization. Amortize premium or discount on interest dates and at year-end