On September 30, 2012, Cullumber Company issued 10% bonds with a par value of $460,000 due in 20 years. They were issued at 98 and were callable at 105 at any date after September 30, 2017. Because Cullumber Company was able to obtain financing at lower rates, it decided to call the entire issue on September 30, 2018, and to issue new bonds. New 9% bonds were sold in the amount of $780,000 at 102; they mature in 20 years. Cullumber Company uses straight-line amortization. Interest payment dates are March 31 and September 30.