17. Given the following (Totals for each date should include dollars signs in the third column). LIFO method 250 units left in inventory. The cost of ending inventory is: 18. Allison Co. has a beginning inventory costing $90,000 and an ending inventory costing $120,000. Sales were $380,000. Assume Allison's markup rate is 40%. Based on the selling price, the inventory turnover at cost (to the nearest hundredth) IS: 19. Mac's Hardware's gross profit on sales is 40%. At the beginning of January, cost of inventory was $18,000. During one month, Mac had net purchases of $42,000. Net sales at retail for the month were $49,000. The estimated cost of ending inventory using the gross profit method is