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a. Determine the cost of goods sold and ending merchandise inventory by preparing a perpetual inventory record using the specific identification method. Assume the following costing information for the books sold during the month: August3:August15:August28:5bookscosting$21each10bookscosting$21eachand5bookscosting$23each6bookscosting$23eachand2bookscosting$26each b. Determine the cost of goods sold and ending merchandise inventory by preparing a perpetual inventory record using the FIFO inventory costing method. c. Determine the cost of goods sold and ending merchandise inventory by preparing a perpetual inventory record using the LIFO inventory costing method. d. Determine the cost of goods sold and ending merchandise inventory by preparing a perpetual inventory record using the weighted-average inventory costing method. Round weighted average unit cost to the nearest cent and total cost to the nearest dollar. Far wisin Mievel 1 Aiogat is Aighed ax. More info