Moffett Company, which uses the periodic inventory system, has the following records for July of 2017: Moffett sold 290 units during July. Compute the cost of the ending inventory and the cost of goods sold using the following methods: Ending Inventory Cost of Goods Sold a. FIFO ___ b. LIFO ____ c. Weighted-average ___ d. Compute the inventory turnover under the FIFO method ____