Sales are 50% cash and 50% on credit. All credit sales are collected in the month following the sale. The March 31 balance sheet includes balances of $12,000 in cash, $12,000 in accounts receivable, $11,000 in accounts payable, and a $2,000 balance in loans payable. A minimum cash balance of $12,000 is required. Loans are obtained at the end of any month when a cash shortage occurs. Interest is 1% per month based on the beginning-of-the-month loan balance and is paid at each month-end. If an excess balance of cash exists, loans are repaid at the end of the month. Operating expenses are paid in the month incurred and include sales commissions (10% of sales), shipping (2% of sales), office salaries ($5,000 per month), and rent ($3,000 per month).