1. McGraw-Hill/Irwin ©2011 The McGraw-Hill Companies, All Rights Reserved Chapter 18 Inventory and Overhead

2. 18-2 1. List the key assumptions of each inventory method 2. Calculate the cost of ending inventory and cost of goods sold for each inventory method Inventory and Overhead #18 Learning Unit Objectives Assigning Costs to Ending Inventory - Specific Identification; Weighted Average; FIFO; LIFO LU18.1

3. 18-3 1. Calculate the cost ratio and ending inventory at cost for the retail method 2. Calculate the estimated inventory, using the gross profit method 3. Explain and calculate inventory turnover 4. Explain overhead; allocate overhead according to floor space and sales Inventory and Overhead #18 Learning Unit Objectives Retail Method; Gross Profit Method; Inventory Turnover; Distribution of Overhead LU18.2

4. 18-4 Perpetual Inventory System - keeps a running account of inventory by updating with each transaction Inventory Systems Periodic Inventory System - Relies on a physical count of inventory done periodically

5. 18-5 Number of Cost Total Units Purchasedper unit cost Beginning Inventory 40 $8 $320 First Purchase (April 1) 20 9 180 Second Purchase (May 1) 20 10 200 Third Purchase (Oct. 1) 20 12 240 Fourth Purchase (Dec. 1) 20 13 260 Goods available for sale 120 $1,200 Units Sold 72 Units in ending inventory 48 Blue Company - Inventory Information Step 1

6. 18-6 Step 2. Calculate the cost of ending inventory Step 3. Calculate the cost of goods sold (Step 1- Step 2) Step 1. Calculate the cost of goods (Merchandise available for sale) Beg Inv. 4/1 5/1 10/1 12/1 Specific Identification Method

7. 18-7 Cost per unit Total cost 20 Units from April 1$ 9$180 20 Units from Oct. 1$12 240 8 Units from Dec. 1$13 104 Cost of ending inventory$524 Cost of goods - Cost of ending = Cost of available for sale inventory goods sold $1,200 - $524 = $676 Step 3 Step 2 Specific Identification Method

8. 18-8 Weighted Average Method Weighted avg = Total cost of goods available for sale = $1,200 = $10 Unit cost Total number of units available for sale 120 Average cost of ending inventory: 48 units at $10 = $480 Cost of goods sold = $1,200 - $480 = $720 Number of Cost Total Units Purchasedper unit cost Beginning Inventory 40 $8 $320 First Purchase (April 1) 20 9 180 Second Purchase (May 1) 20 10 200 Third Purchase (Oct. 1) 20 12 240 Fourth Purchase (Dec. 1) 20 13 260 Goods available for sale 120 $1,200 Units Sold 72 Units in ending inventory 48

9. 18-9 First-In, First-Out Method 20 Units from Dec. 1 at $13$260 20 Units from Oct. 1 at $12 240 8 Units from May 1 at $10 80 48 units in ending inventory$580 Cost of goods sold: $1,200 - $580 = $620 Number of Cost Total Units Purchasedper unit cost Beginning Inventory 40 $8 $320 First Purchase (April 1) 20 9 180 Second Purchase (May 1) 20 10 200 Third Purchase (Oct. 1) 20 12 240 Fourth Purchase (Dec. 1) 20 13 260 Goods available for sale 120 $1,200 Units Sold 72 Units in ending inventory 48

10. 18-10 Last-In, First-Out Method 40 Units from beginning inventory at $8$320 8 Units from Apr 1 at $9 72 48 units in ending inventory$392 Cost of goods sold: $1,200 - $392 = $808 Number of Cost Total Units Purchasedper unit cost Beginning Inventory 40 $8 $320 First Purchase (April 1) 20 9 180 Second Purchase (May 1) 20 10 200 Third Purchase (Oct. 1) 20 12 240 Fourth Purchase (Dec. 1) 20 13 260 Goods available for sale 120 $1,200 Units Sold 72 Units in ending inventory 48

11. 18-11 Estimating Inventory - Retail Method Step 1. Calculate the cost of goods available for sale at cost and retail Step 2. Calculate a cost ratio using the following formula Cost of goods available for sale at cost Cost of goods available for sale at retail Step 3. Deduct net sales from cost of goods available for sale at retail Step 4. Multiply the cost ratio by the ending inventory at retail

12. 18-12 CostRetail Beginning Inventory$4,000$6,000 Net purchases during month 2,300 3,000 Cost of goods available for sale (Step 1)$6,300$9,000 Less net sales for month(Step 3) 4,000 Ending Inventory at retail $5,000 Cost ratio ($6,300/$9,000) (Step 2) 70% Ending Inventory at cost ($5,000 x.70) (Step 4)$3,500 Estimating Inventory - Retail Method

13. 18-13 Estimating Inventory - Gross Profit Method Step 1. Calculate the cost of goods available for sale (Beginning inventory + Net purchases) Step 2. Multiply the net sales at retail by the complement of the gross profit rate. This is the estimated cost of goods sold Step 3. Calculate the cost of estimated ending inventory (Step 1- Step 2) Assuming the following, calculate the estimated inventory Gross profit on sales 30% Beginning inventory June 1, 2009$20,000 Net purchases 8,000 Net sales at retail for June 12,000

14. 18-14 Beginning Inventory, June 1, 2009$20,000 Net purchases 8,000 Cost of goods available for sale (Step 1)$28,000 Less estimated cost of good sold: Net sales at retail$12,000 Cost Percentage (100% - 30%) x.70 (Step 2) Estimated cost of goods sold - 8,400 Estimated ending inventory, June 30, 2009$19,600 (Step 3) Estimating Inventory - Gross Profit Method

15. 18-15 Inventory Turnover The number of times inventory is replaced during a specific time Inventory turnover at retail = Net sales Average inventory at retail Inventory turnover at cost = Cost of goods sold Average inventory at cost

16. 18-16 Inventory Turnover Net sales $32,000Cost of goods sold $22,000 Beginning inventory at retail 11,000Beginning inventory at cost 7,500 Ending inventory at retail 8,900Ending inventory at cost 5,600 Average inventory = Beginning inventory + Ending inventory 2 At retail = $32,000 = $32,000 = 3.22 $11,000 + $8,900 $9,950 2 At cost = $22,000 = $22,000 = 3.36 $7,500 + $5,600 $ 6,550 2 Usually higher due to theft, spoilage, markdowns, etc.

17. 18-17 Calculating the Distribution of Overhead by Floor Space Step 1. Calculate the total square feet in all departments Step 2. Calculate the ratio for each department based on floor space Step 3. Multiply each department’s floor space ratio by the total overhead

18. 18-18 Department A - 6,000 square feet Department B - 3,000 square feet Department C - 1,000 square feet Overhead of $90,000 Floor spaceRatio Department A6,000 6,000 = 60% 10,000 Department B3,000 3,000 = 30% 10,000 Department C1,000 1,000 = 10% 10,000 Department A.60 x $90,000 = $54,000 Department B.30 x $90,000 = $27,000 Department C.10 x $90,000 = $ 9,000 Step 1 & 2 Calculating the Distribution of Overhead by Floor Space (Roy Company)

19. 18-19 Calculating the Distribution of Overhead by Sales Step 1. Calculate the total sales in all departments Step 2. Calculate the ratio for each department based on sales Step 3. Multiply each department’s sales ratio by the total overhead

20. 18-20 Calculating the Distribution of Overhead by Sales (Morse Company) SalesRatio Department A$80,000$ 80,000 =.80 $100,000 Department B 20,000 $20,000 =.20 $100,000$100,000 Department A.80 x $60,000 = $48,000 Department B.20 x $60,000 = $12,000 $60,000 Total Overhead Expenses Morse Company distributes its overhead expenses based on the sales of its departments. For example, last year Morse’s overhead expenses were $60,000. Sales of its two departments were as follows, along with its ratio calculation.