Shown below is activity for one of the products of Denver Office Equipment:

January 1 balance, 500 units @ $55 $27,500

Purchases

January 10 500 units @ $60

January 20 1,000 units @ $63

Sales

January 12 800 units

January 28 750 units

Compute the ending inventory and cost of goods sold assuming Denver uses LIFO and a perpetual inventory system.

Compute the ending inventory and cost of goods sold assuming Denver uses LIFO and a periodic inventory system.