The following data relate to a single inventory item for Rodeo Corporation: Units 110 Date June 1 June 3 June 15 June 18 June 25 Cost per Unit S6 S5 30 Beginning Inventory Purchase Sale Purchase Sale (40) 50 (20) $4 Using a perpetual inventory system and FIFO cost formula, the ending inventory is O $550. O $520 O $650 O $760