compute the cost of goods sold assuming periodic inventory procedures and inventory priced at FIFO

Grouper Company's record of transactions for the month of April was as follows. Purchases April 1 (balance on hand) 1,440 at $6.00 April 4. 3,600 at $6.08 April 8. 1,920.at $6.40 April 13. 2,880. at. $6.50 April 21. 1,680. at. $6.60 April. 29. $6.79 1,200. at. 12,720 SALES April 3. 1,200. at. $10.00 April 9. 3,360 at. $10.00 April 11. 1,440 at. $11.00 April 23 2,880. at. $11.00 April 27 $12.00 2,160. at 11,040