wing transactions in August related to merchandise inventory (Click the icon to view the transactions.) Read the requirements. a., b., and c. Determine the cost of goods sold and ending merchandise inventory using the (a) FIFO inventory costing method, and (c) weighted-average inventory costing method assuming Serenity Books uses the periodic inventory syste per unit to the nearest cent and all other amounts to the nearest dollar.) a. b. C. FIFO LIFO Weighted-Average Beginning Merchandise Inventory 150 $ 150 Plus Net Cost of Inventory Purchased 224 224 Cost of Goods Available for Sale 374 374 Less Ending Merchandise Inventory (98) (75) 276 S 2991 Cost of goods sold Ask my instructor 99 Clear all