Inventory Costing Methods-Periodic System The following information is available concerning the inventory of Carter Inc.: During the year, Carter sold 1, 000 units. It uses a periodic inventory system. Required: Calculate ending inventory and cost of goods sold for each of the following three methods: Assume an estimated tax rate of 30%. How much more or less (indicate which) will Carter pay in taxes by using FIFO instead of UFO? Difference in taxes under FIFO vs. LIFO