A company has the following inventory data: July 1 Beginning inventory is 30 units at $4.00 per unit July 7 Purchase 120 units for $4.30 per unit 0.5 pts July 17 Purchase 60 units at $4.20 per unit July 22 Purchased 90 units at $4.40 per unit A physical count of merchandise inventory on July 31 reveals that there are 100 units on hand. Ending inventory under FIFO and a periodic inventory system is O $863 O $638 O $846 $438 $421