Cash$21,945Accounts receivable46,400Note receivable, due 20208,200Merchandise inventory34,400Prepaid insurance2,220Supplies1,280Equipment42,200Accumulated depreciation, equipment22,200Note payable to bank, due 202022,000Accounts payable26,480Interest payable220Sales523,500Sales discounts1,900Cost of goods sold380,555

Accounts Receivable at December 31, 2018, was $55,800. Merchandise inventory at December 31, 2018, was $57,300. Based on the account balances above, calculate the following:

1. The gross profit percentage.
2. Working capital.
3. The current ratio.
4. The inventory turnover.
5. The accounts receivable turnover. All sales were on credit.