| Inventory Calculations |
| | Arlington Company uses a periodic inventory system. It entered into the following purchases and sales transactions for March. Units sell for $85 per unit. Inventory costs are calculated at the end of the month. |
| | | | Units | Sold | cost |
| Date | Activities | | Units | Sold | Cost |
| 1-Mar | Beginning inventory | | 100 | | 50 |
| 5-Mar | Purchase | | 400 | | 55 |
| 9-Mar | Sales | | | 420 |
| 16-Mar | Purchase | | 120 | | 60 |
| 25-Mar | Purchase | | 200 | | 62 |
| 29-Mar | Sales | | | 160 |
| For specific identification, the March 9 sale consisted of 80 units from beginning inventory and 340 units from the March 5 purchase; the March 29 sale consisted of 40 units from the March 16 purchase and 120 units from the March 25 purchase. |
| a. | Compute the Goods available for sale and the number of units for sale |
| | Cost of Goods Available for Sale |
| | | | # of Units | Cost per Unit | Cost of Goods Available for Sale |
| | Beginning inventory |
| | Purchases: |
| | 5-Mar |
| | 16-Mar |
| | March 25 |
| | Total |
| b. Compute the number of units in ending inventory. |
| | Units available |
| | Less: Units sold |
| | Ending inventory (units) |
| c. Compute the cost of ending inventory using the FIFO method |
| Date | Activities | | Units | Sold | Cost |
| 1-Mar | Beginning inventory | | 100 | | 50 |
| 5-Mar | Purchase | | 400 | | 55 |
| 9-Mar | Sales | | | 420 |
| 16-Mar | Purchase | | 120 | | 60 |
| 25-Mar | Purchase | | 200 | | 62 |
| 29-Mar | Sales | | | 160 |
| FIFO | Cost of Goods Sold | | | | Ending Inventory |
| Date | Units sold | units | Cost per unit | Cost of goods sold | # ending inventory | Cost per unit | $ Ending Inventory |
| Sales |
| 1-Mar |
| 5-Mar |
| 16-Mar |
| 25-Mar |
| Totals |
| d. Compute the cost of ending inventory using the LIFO method |
| Date | Activities | | Units | Sold | Cost |
| 1-Mar | Beginning inventory | | 100 | | 50 |
| 5-Mar | Purchase | | 400 | | 55 |
| 9-Mar | Sales | | | 420 |
| 16-Mar | Purchase | | 120 | | 60 |
| 25-Mar | Purchase | | 200 | | 62 |
| 29-Mar | Sales | | | 160 |
| LIFO | Cost of Goods Sold | | | | Ending Inventory |
| Date | Units sold | units | Cost per unit | Cost of goods sold | # ending inventory | Cost per unit | $ Ending Inventory |
| Sales |
| 25-Mar |
| 16-Mar |
| 5-Mar |
| 1-Mar |
| Totals |
| e. Compute the cost of ending inventory using the Specific Identification method |
| For specific identification, the March 9 sale consisted of 80 units from beginning inventory and 340 units from the March 5 purchase; the March 29 sale consisted of 40 units from the March 16 purchase and 120 units from the March 25 purchase. |
| Date | Activities | | Units | Sold | Cost |
| 1-Mar | Beginning inventory | | 100 | | 50 |
| 5-Mar | Purchase | | 400 | | 55 |
| 9-Mar | Sales | | | 420 |
| 16-Mar | Purchase | | 120 | | 60 |
| 25-Mar | Purchase | | 200 | | 62 |
| 29-Mar | Sales | | | 160 |
| SPEC ID | Cost of Goods Sold | | | | Ending Inventory |
| Date | Units sold | units | Cost per unit | Cost of goods sold | # ending inventory | Cost per unit | $ Ending Inventory |
| Sales |
| 1-Mar |
| 5-Mar |
| 16-Mar |
| 25-Mar |
| Totals |
| f. Compute the cost of ending inventory using the Weighted Average method |
| Date | Activities | | Units | Sold | Cost |
| 1-Mar | Beginning inventory | | 100 | | 50 |
| 5-Mar | Purchase | | 400 | | 55 |
| 9-Mar | Sales | | | 420 |
| 16-Mar | Purchase | | 120 | | 60 |
| 25-Mar | Purchase | | 200 | | 62 |
| 29-Mar | Sales | | | 160 |
| Average | Cost of Goods Sold | | | | Ending Inventory |
| Date | Units sold | units | Cost per unit | Cost of goods sold | # ending inventory | Cost per unit | $ Ending Inventory |
| Sales |
| 1-Mar |
| 5-Mar |
| 16-Mar |
| 25-Mar |
| Totals |
| | | | Cost of goods sold |
| g. Compute Gross margin for each inventory costing methods |
| | FIFO | LIFO | Spec ID | Average |
| Units Sold |
| price per unit |
| total sales |
| Cost of Goods Sold |
| Gross Margin |
| Ending Inventory |