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 March 1 March 5 Transactions Beginning inventory Sale ($370 each) Purchase Units 20 Unit Cost Total Cost $235 $4,700 15 March 9 10 255 2,550 March 17 Sale ($420 each) 8 March 22 March 27 March 30 Purchase 10 265 2,650 Sale ($445 each) Purchase 12 9 285 2,565 $12,465 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.