Martin Company has a line of credit with Federal Bank. Martin can borrow up to $600,000 at any time over the course of the 2013 calendar year. The following table shows the prime rate expressed as an annual percentage along with the amounts borrowed and repaid during the first four months of 2013. Martin agreed to pay interest at an annual rate equal to 2 percent above the bank's prime rate. Funds are borrowed or repaid on the first day of each month. Interest is payable in cash on the last day of the month. The interest rate is applied to the outstanding monthly balance. For example, Martin pays 5 percent (3 percent + 2 percent) annual interest on $90,000 for the month of January.
Required:
Provide all journal entries pertaining to Martin's line of credit for the first four months of 2013.