Greg's Bicycle Shop has the following transactions related to its top-selling Mongoose mountain bike for the month of March. Greg's Bicycle Shop uses a periodic inventory system. Transactions. Beginning inventory Purchase Total Cost $ 4,200 Date March 1 Units Unit Cost 20 $210 Marchi 5 Sale ($320 each) 15 March 9 10 230 2,300 March 17 Sale ($370 each) 8 March 22 Purchase 10 240 2,400 March 27 March 30 Sale ($395 each) Purchase 12 7 260 1,820 $10,720 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. Problem 6-2A Part 5 5. Calculate sales revenue and gross profit under each of the four methods. (Round weighted-average cost amounts to 2 decimal places.) Specific Identification Weighted- FIFO LIFO average cost Sales revenue Cost of goods sold Gross profit