Required information [The following information applies to the questions displayed below.] 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 Date March 1 Units 20 Unit Cost $155 Total Cost $3,100 March 5 Sale ($210 each) 15 March 9 Purchase 10 175 1,750 March 17 Sale ($260 each) 8 March 22 Purchase 10 185 1,850 March 27 March 30 Sale ($285 each) 12 Purchase 9 205 1,845 $8,545 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. 5. Calculate sales revenue and gross profit under each of the four methods. (Round weighted-average cost amounts to 2 decimal places.) Sales revenue Cost of goods sold Gross profit Specific Identification FIFO LIFO Weighted- average cost