Shown below is activity for one of the products of Denver office equipment: Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses FIFO. Required: Compute the January 31 ending inventory and cost of goods sold for January, assuming Denver uses LIFO perpetual inventory system. Required: Compute the January 31 ending inventory and cost of goods sold for January, assum.ng Denver uses average Required: compute January 31 ending inventory and cost of goods sold for January, assuming Denver uses LIFO and periodic inventory system. Required: record ALL the Journal Entry for the transactions in January using the LIFO periodic inventory system