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

January 1 balance, 630 units @ $55 $34,650
Purchases:
January 10:	630 units @ $60
January 20:	1,260 units @ $62
Sales:
January 12:	900 units
January 28:	770 units

Required:

Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses average cost and a periodic inventory system.