The following selected accounts were taken from the financial records of Los Olivos Distributors at December 31, 2019. All accounts have normal balances.

Cash ..........................................................................$ 33,340

Accounts receivable ...................................................47,700

Note receivable, due 2020 ..........................................9,500

Merchandise inventory .............................................35,700

Prepaid insurance ........................................................2,350

Supplies .........................................................................1,410

Equipment ..................................................................43,500

Accumulated depreciation, equipment ..................23,500

Note payable to bank, due 2020 .............................35,000

Accounts payable .......................................................13,050

Interest payable ...............................................................350

Sales ...........................................................................535,000

Sales discounts ..............................................................3,200

Cost of goods sold ....................................................348,540

Accounts Receivable at December 31, 2018, was $52,550. Merchandise inventory at December 31, 2018, was $58,500. Based on the account balances above, calculate the following:

a. The gross profit percentage

b. Working capital

c. The current ratio

d. The inventory turnover

e. The accounts receivable turnover. All sales were on credit.