Answer:
Concord Company
1. Average cost per unit = $168,000/7,500 = $22.40
2. Cost of goods sold:
(a) Periodic system, FIFO cost flow $ 
= Cost of goods available for sale Minus Ending Inventory
= $168,000 - $48,600
= $119,400
(Ending Inventory = 1,800 x $27 = $48,600)
(b) Perpetual system, FIFO cost flow $ 
= $119,400
(c) Periodic system, LIFO cost flow $ 
= Cost of goods available for sale Minus Ending Inventory
= $168,000 - $27,300
= $140,700
(Ending Inventory = 1,500 * $14 + 300 * $21 = 27,300)
(d) Perpetual system, LIFO cost flow $ 
= Cost of goods available for sale - Ending Inventory
= $168,00 - $35,600
= $132,400
= 2,500 * $21 = $52,500
+ 500 * $14    = $7,000
+  2,700 * $27 = $72,900
Total 5,700   =  $132,400
(Ending Inventory = 1,000 * $14 + 800 * 27 = $35,600)
(e) Periodic system, weighted-average cost flow $ 
= 5,700 * $22.40
= $127,680
(f) Perpetual system, moving-average cost flow $
= 3,000 * $18.375 =  $55,125
+ 2,700 * $25.083 = $67,724.10
Total 5,700 units = $122,849.10
Explanation:
Data about Product Hawkeye:
Date Transaction             Quantity  Price/Cost      Costs  Moving     Sale 
                                                                                            Average  Revenue
1/1     Beginning inventory 1,500             $14      $21,000
2/4   Purchase                  2,500               21       52,500   18.375
2/20 Sale                         (3,000)       35                                        $105,000
4/2  Purchase                   3,500              27       94,500  25.083
11/4  Sale                          (2,700)       39                                          105,300
12/31 Ending inventory     1,800 
Goods available for sale 7,500                      $168,000
Goods sold                      5,700                                                    $210,300
Average cost per unit = $168,000/7,500 = $22.40