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. Date Transactions Units Unit Cost Total Cost March 1 Beginning inventory 20 $180 $3,600 March 5 Sale ($260 each) 15 March 9 Purchase 10 200 2,000 March 17 Sale ($310 each) 8 March 22 Purchase 10 210 2,100 March 27 Sale ($335 each) 12 March 30 Purchase 7 230 1,610 $9,310 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