4. Mariam Store is a distributor for children garments. Selected data for Mariam Store appear below. 2017 2016 Net sales RM650,000 RM520, 000 Cost of goods sold 590,000 345,000 Inventory at end of year 64,000 85,000 Accounts receivable at end of year 80,000 50,000 Required: (a) Compute the following for 2017: (i) Gross profit percentage (ii) Inventory turnover (iii) Receivables turnover