Dawson Corp desired to raise cash to fund its expansion by issuing long-term bonds. The corporation hired an investment banker to manage the issue (best efforts underwriting) and also hired services of a lawyer, an audit firm, ect. On June 1, 2015, Dawson sold $500,000 in long-term bonds. The bonds will mature in 10 years and have a stated interest rate of 8%. The market rate was 10%. The bonds pay interest semi-annually on May 31 and November 30. The bonds are to be accounted for using the effective interest method. On June 1, 2017, Dawson decided to retire 20% of the bonds, at that time the bonds were selling at 98.

Required:

1. Prepare the journal entry for the issuance of the bonds on June 1, 2015.
2. What was the interest expense related to these bonds that would be reported on Dawson's calendar year 2015 income statement?
3. Prepare all entries related to bonds after June 1 and up to and including December 31, 2015
4. Calculate the gain or loss on the partial retirement of the bonds on June 1, 2017 and prepare the journal entry to record the partial retirement.