Gregs Bicycle Shop has the following transactions related to its top-selling Mongoose mountain bike for the month of March 2015. Greg's Bicycle Shop uses a periodic inventory system. Date Transactions Units Cost per Unit Total Cost March 1 Beginning inventory 20 $250 $ 5,000 March 5 Sale ($400 each) 15 March 9 Purchase 10 270 2,700 March 17 Sale ($450 each) 8 March 22 Purchase 10 280 2,800 March 27 Sale ($475 each) 12 March 30 Purchase 9 300 2,700 $ 13,200 Calculate ending inventory and cost of goods sold at March 31, 2015, using 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