Gradebook ORION Downloadable eTextbook nt 04:13 PM/ Beginning inventory PRINTER VERSION 4BA 3,100 units at $5 7,900 units at $6 9,300 units at $10 Sales Determine cost of goods sold during the period under a periodic inventory system using the FIFO method. (Round answer to o decimal places, e.g. 1,250.) Cost of goods sold during the period Determine cost of goods sold during the period under a periodic inventory system using the LIFO method. (Round answer to 0 declmal places, e.g. 1,250.) LIFO Cost of goods sold during the period s Determine cost of goods sold during the period under a periodic inventory system using the average-cost method. (Round average-cost per unit to 3 decimal places, e.g 12.502 and final answer to O decimal places,e.g. 1,250.) Average cost Cost of goods sold during the period s rch 0