Baxter, Inc. had the following inventory transactions during 2021 : Beginning balance on January 1,2021,1,000 units costing $5.00 per unit. February 15,2021 , purchased 3,000 units costing $6.00 per unit. March 12, 2021, sold 2,000 units. April 10, 2021 , purchased 1,500 units costing $7.00 per unit. May 14, 2021, sold 500 units. June 27, 2021, purchased 1,000 units costing $8.00 per unit. REQUIRED: Calculate the ending inventory at June 30,2021 , and the cost of goods sold for the period January 1, 2021 through June 30, 2021, using the following inventory cost flow assumptions: 1) FIFO Periodic 2) LIFO Periodic 3) LIFO Perpetual 4) Moving (Weighted) Average Perpetual