Shown below is activity for one of the products of Deriver Of upruent: Jamuary 1 balance, 520 units a $50 per unit $26,000 Purchases: January 10:520 units a $55 per unit January 20: 1,040 units 9$59 per unit Sales: January 12:780 units January 28: 770 units Required: Compute the January 31 ending inventory and cost of goods sold for January assuming Denver uses FiFo