Ariana Bicycle Shop has the following transactions related to its top-selling Mongoose mountain bike for the month of March. Ariana Bicycle Shop uses a periodic inventory system. Transactions Beginning inventory Date March 1 Units 20 Unit Cost Total Cost $150 $3,000 March 5 Sale ($200 each) 15 March 9 Purchase 10 170 1,700 March 17 Sale ($250 each): 8 March 22 March 27 March 30 Purchase 10 180 1,800 Sale ($275 each) Purchase 12 7 200 1,400 $7,900 For the specific identification method, the March 5 sale consists of bikes from beginning inventory, the March 17 sale consists of bikes from the March 9 purchase, and the March 27 sale consists of four bikes from beginning inventory and eight bikes from the March 22 purchase. Required: 1. Calculate ending inventory and cost of goods sold at March 31, using the specific identification method. 2. Using FIFO, calculate ending inventory and cost of goods sold at March 31. 3. Using LIFO, calculate ending inventory and cost of goods sold at March 31. 4. Using weighted-average cost, calculate ending inventory and cost of goods sold at March 31, 5. Calculate sales revenue and gross profit under each of the four methods. 6. Comparing FIFO and LIFO, which one provides the more meaningful measure of ending inventory? 7. If Ariana Bicycle Shop chooses to report inventory using LIFO instead of FIFO, record the LIFO adjustment.