Question 7 1 pts Table 4 ustin Company uses a periodic inventory ystem. Assume the following data for 20x5 eginning inventory arch 18 purchase une 10 purchase ctober 30 purchase n December 31, a physical count reveals 10 units at $7 each 15 units at $9 each 20 units at $10 each 12 units at $11 each 15 units in ending invento Referring to Table 4, under the weighted average cost method, cost of goods sold on the income statement would be O $420 O $396 O $294 O $389