You have the following information for Vaughn Diamonds. Vaughn Diamonds uses the periodic method of accounting for its inventory transactions. Vaughn only carries one brand and size of diamonds-all are identical. Each batch of diamonds purchased is carefully coded and marked with its purchase cost. March 1 Beginning inventory 162 diamonds at a cost of 332 per diamond. March 3 Purchased 216 diamonds at a cost of 378 each. March 5 Sold 200 diamonds for 648 each. March 10 Purchased 378 diamonds at a cost of 416 each. March 25 Sold 432 diamonds for 702 each. (a) Assume that Vaughn Diamonds uses the specific identification cost flow method.