Tierney, Inc. maintains a perpetual inventory system and uses the moving average method to determine Ending Inventory & COGS Price $20,50 $20.80 Date Oct 1 Oct 3 Oct 7 Oct 20 Oct 22 Oct 29 Beginning Inventory Purchase Sale Purchase Sale Purchase Units 1,100 10,000 5,000 8,000 8,500 3,000 $21.00 $21.50 Calculate COGS under the moving average method. (do not use $ signs, commas or decimals in your answer) A Calculate Ending Inventory under the moving average method, (do not use dollar signs, commas, or decimal points in your answer) A/