A company has the following: December 1 Beginning inventory of 15 units at $6.00 per unit December 7 Purchased 60 units at $6.25 per unit December 12 Sold 25 units December 20 Purchased 30 units at $7.75 per unit December 29 Sold 10 units Assuming that a perpetual inventory system is used, what is the ending inventory on a LIFO basis for December? What if a periodic inventory system had been used instead of perpetual? Group of answer choices