1.10 please help! thumbs up

Shown below is activity for one of the products of Denver Office Equipment: January 1 balance, 650 units @$60 per unit $39,000 Purchases: January 10: 650 units @$65 per unit January 20:1,200 units a $70 per unit Sales: January 12:1,000 units January 28:790 units Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses average cost and a perpetual inventory system. Note: Do not round intermediate calculations. Round your final answers to nearest whole dollar amount