Chapter 05 – Inventories and Cost of Sales
Chapter 05
Inventories and Cost of Sales
Student Learning Objectives and Related Assignment Materials*
Student Learning Objectives
Discussion
Questions
Quick
Studies
Exercises
Problems
(A &B set)**
Beyond the
Numbers
Conceptual objectives:
C1. Identify the items making up
merchandise inventory.
12
5-17, 5-23
5-1
HTR
C2. Identify the costs of
merchandise inventory.
2, 3
5-18, 5-23
5-2
RIA, HTR
Analytical objectives:
A1. Analyze the effects of
inventory methods for both
financial and tax reporting.
4, 5, 6, 7, 14.
15, 16, 17
5-16
5-6, 5-11
5-8
EC, CIP,
TIA
A2. Analyze the effects of
inventory errors on current and
future financial statements.
8, 9
5-20
5-12
5-6
A3. Assess inventory management
using both inventory turnover
and days’ sales in inventory.
5-21
5-11, 5-13
RIA, CA,
TTN, ED,
GD
Procedural objectives:
P1. Compute inventory in a
perpetual system using the
methods of specific
identification, FIFO, LIFO,
and weighted average.
1
5-1, 5-2, 5-3,
5-7, 5-8, 5-9,
5-10, 5-11
5-3, 5-7, 5-8
5-1, 5-2, 5-3,
5-4
TIA
P2. Compute the lower of cost or
market amount of inventory.
10, 11
5-19, 5-23
5-10, 5-18
5-5
P3. Compute inventory in a periodic
system using the methods of
specific identification, FIFO,
LIFO, and weighted average.
(Appendix 5A)
13
5-4, 5-6, 5-
12, 5-13,
5-14, 5-15,
5-5, 5-9,
5-14, 5-15
5-7, 5-8
P4. Apply both the retail inventory
and gross profit methods to
estimate inventory.
(Appendix 5B)
18
5-22
5-16, 5-17
5-9, 5-10
Notes appear on next page.
Chapter 05 – Inventories and Cost of Sales
* Assignment materials that can be completed by students using:
Sage 50 and QuickBooks Pro 2013 templates – none.
Excel templates – Problem 5-6A, 5-7A
** The Serial Problem for Success Systems, which covers numerous learning objectives, can be
most of the chapters. Even if previous segments were not assigned, students can begin the segment
of the serial problem that is included in this chapter. It is most readily solved if students use the
Working Papers that accompany the book.).
Synopsis of Chapter Revisions
• Feverish Ice Cream: NEW opener with new entrepreneurial assignment
• Enhanced exhibit that visually shows cost flows from inventory to financial statements, with
superior info-graphics
• Added new discussion on inventory controls
• New explanatory boxes added to selected exhibits as learning aids
• Expanded assignments covering perpetual and periodic inventory measurement
• New material on IFRS and inventory methods
PowerPoint® Slides
Chapter Learning Objective
C1
C2
P1
A1
P2
A2
Chapter 05 – Inventories and Cost of Sales
a website, in whole or part. 5-3
Chapter Outline
Notes
I. Inventory Basics
A. Determining Inventory Items
Merchandise inventory includes all goods that a company owns and
holds for sale. The following inventory items require special
attention:
1. Goods in Transit
If ownership has passed to the purchaser, the goods are included
in the purchaser’s inventory. Ownership is determined by
reviewing the shipping terms.
a. FOB destination means the seller pays.
b. FOB shipping points means the buyer pays.
2. Goods on Consignment—goods shipped by the owner, called the
consignor, to another party, the consignee.
a. A consignee sells goods for the owner.
b. The consignor continues to own the consigned goods and
reports them in its inventory.
3. Goods Damaged or Obsolete
a. Damaged and obsolete (and deteriorated) goods are not
counted in inventory if they cannot be sold.
b. If these goods can be sold at a reduced price, they are
included in inventory at their net realizable value, the sales
price minus the cost of making the sale.
B. Determining Inventory Costs
1. The cost of an inventory item includes its invoice cost minus any
discount, plus any incidental costs (such as import duties,
freight, storage, and insurance necessary to put it in place and
condition for sale).
2. The expense recognition or matching principle states that
inventory costs should be recorded against revenue in the period
when inventory is sold. Some companies use the materiality
constraint (cost-to-benefit constraint) to avoid assigning those
incidental costs to inventory. Instead, they expense them to cost
of goods sold when incurred.
C. Internal Controls and Taking a Physical Count
1. Events (such as theft, loss, damage, and errors) can cause the
inventory account balance to differ from the actual inventory on
hand.
2. Nearly all companies take a physical count of inventory at least
once a year; the physical count is used to adjust the Inventory
account balance to the actual inventory on hand.
3. Internal controls when taking a physical count of inventory
Chapter 05 – Inventories and Cost of Sales
Chapter Outline
Notes
include:
a. Prenumbered inventory tickets; each ticket must be
accounted for.
b. Those responsible for the inventory do not count the
inventory.
c. Counters confirm the validity of inventory, including its
existence, amount, and quality.
d. A second count is taken by a different counter.
e. A manager confirms that all inventories are ticketed once,
and only once.
II. Inventory Costing under a Perpetual System
Major goal is to properly match costs with sales. The matching
principle is used to decide how much of the cost of goods available for
sale is deducted from sales (on the income statement) and how much is
carried forward as inventory (on the balance sheet). One of the most
important issues in accounting for inventory is determining the per
unit cost assigned to inventory items.
A. Inventory Cost Flow Assumptions
Four methods are commonly used to assign costs to inventory and
cost of goods sold. Each method assumes a particular pattern for
how costs flow through inventory. Physical flow and cost flow
need not be the same.
1. First-in, first-out (FIFO)—assumes costs flow in the order
incurred.
2. Last-in, first-out (LIFO)—assumes costs flow in the reverse
order occurred.
3. Weighted average—assumes costs flow in an average of the
costs available.
4. Specific identification—each item can be identified with a
specific purchase and invoice. Specific identification is
usually only practical for companies with expensive, custom-
made inventory.
Note: The following sections assume the use of a perpetual system,
the assignment of costs to inventory using a periodic system is
described in Appendix 5A.
Chapter 05 – Inventories and Cost of Sales
Chapter Outline
Notes
B. Inventory Costing Illustration
1. Specific identification—As sales occur, cost of goods sold is
charged with the actual or invoice cost, leaving actual costs of
inventory on hand in the inventory account.
2. First-in, first-out (FIFO)—As sales occur, FIFO charges costs
of the earliest units acquired to cost of goods sold, leaving
costs of the most recent purchases in inventory.
3. Last-in, first-out (LIFO)—As sales occur, LIFO charges costs
of the most recent purchase to cost of goods sold, leaving
costs of the earliest purchases in inventory.
4. Weighted average—As sales occur, weighted average
computes the average cost per unit of inventory at the time of
sale and charges this cost per unit sold to cost of goods sold
leaving average cost per unit on hand in inventory. Weighted
average equals cost of goods available for sale divided by the
units available.
5. The units of inventory are identical under all methods.
C. Financial Statement Effects of Costing Methods
1. When purchase prices do not change, each inventory costing
method assigns the same amounts to inventory and to cost of
goods sold. When purchase prices are different, the methods
assign different cost amounts. When purchase costs regularly
rise:
a. FIFO assigns the lowest amount to cost of goods sold
resulting in the highest gross profit and the highest net
income. Advantage: Inventory on the balance sheet
approximates its current replacement cost; it also mimics
the actual flow of goods for most businesses.
b. LIFO assigns the highest amount to cost of goods sold
resulting in the lowest gross profit and the lowest net
income. Advantage: Better match of current costs with
revenues in computing gross margin.
c. Weighted average method yields results between FIFO
and LIFO. Advantage: Smoothing out of price changes.
d. Specific identification always yields results that depend on
which units are sold. Advantage: Exactly matches costs
LIFO.
effects.
Chapter 05 – Inventories and Cost of Sales
Chapter Outline
Notes
2. Exception: LIFO may only be used for tax purposes if it is
also used for financial reporting.
E. Consistency in Using Costing Methods
1. Consistency concept requires the use of the same accounting
methods period after period so the financial statements are
comparable across periods.
2. Method change is acceptable if it will improve financial
reporting. The full-disclosure principle requires statement
notes report type of change, its justification, and its effect on
income.
3. Different methods may be consistently applied to different
categories of inventory.
III. Valuating Inventory at LCM and the Effects of Inventory Errors
A. Lower of Cost or Market
Accounting principles require that inventory be reported on the
balance sheet at the lower of cost or market (LCM).
1. Market is the current replacement cost of purchasing the same
inventory items in the usual manner.
2. When the recorded cost of inventory is higher than the
replacement cost, a loss is recognized; when the recorded cost
is lower, no adjustment is made.
3. Lower of cost or market pricing is applied in one of three
ways to:
a. Each individual item separately,
b. Major categories of items, or
c. To the entire inventory.
4. Accounting rules require that inventory be adjusted to market
when market is less than cost, but inventory normally cannot
be written up to market when market exceeds cost. The
conservatism constraint prescribes the use of the less
optimistic amount when more than one estimate of the amount
to be received or paid exists and these estimates are about
equally likely. IFRS requires lower LCM to be applied to
individual items.
B. Financial Statement Effects of Inventory Errors.
An inventory error causes misstatements in cost of goods sold,
misstatements in the next period’s financial statements because
ending inventory of one period is the beginning inventory of the
Chapter 05 – Inventories and Cost of Sales
Chapter Outline
Notes
1. Income statement effects:
a. If ending inventory is understated, cost of goods sold is
overstated and net income is understated.
b. If beginning inventory is understated, cost of goods sold is
understated and net income is overstated.
c. If ending inventory is overstated, cost of goods sold is
understated and net income is overstated.
d. If beginning inventory is overstated, cost of goods sold is
overstated and net income is understated.
2. Balance sheet effects:
a. If ending inventory is understated, assets and equity are
understated.
b. If ending inventory is overstated, assets and equity are
overstated.
c. Errors in beginning inventory do not yield misstatements
in the end-of-period balance sheet, but they do affect
current period’s income statement (see 1 above).
IV. Global View
A. Items and Costs Making Up Inventory – Both GAAP and IFRS
include broad and similar guidance for the items and costs making
up merchandise inventory which includes all items that a company
owns and holds for sale, including the costs of expenditures
necessary to bring those items to a salable condition and location.
B. Assigning Costs to Inventory – Both GAAP and IFRS allow
companies to use specific identification in assigning costs to
inventory and both systems allow companies to apply a cost flow
assumption (FIFO, Weighted Average and LIFO). IFRS does not
allow use of LIFO.
C. Estimating Inventory Costs – The value of inventory can change
while it awaits sale to customers and this value can decrease or
increase.
1. Decreases in Inventory Value – Both GAAP and IFRS require
companies to write down (reduce the recorded cost) for inventory
when its value falls below the cost presently recorded. This is
called the lower of cost or market method. GAAP prohibits any
later increase in the recorded value, but IFRS allows reversals of
those write downs up to the original acquisition cost.
2. Increases in Inventory Value – GAAP and IFRS do not allow
inventory to be adjusted upward beyond original cost.
Chapter 05 – Inventories and Cost of Sales
Chapter Outline
Notes
V. Decision Analysis—Inventory Turnover and Days’ Sales in
Inventory
A. Inventory Turnover
1. Inventory turnover, also called simply turns, is used to
measure a company’s ability to pay short-term obligations can
depend on how quickly inventory is sold.
2. It is calculated by dividing cost of goods sold by average
inventory.
3. It measures the number of times a company’s average
inventory was sold during an accounting period.
B. Days’ Sales in Inventory
1. Day’s sales in inventory measures how much inventory is
available in terms of the number of days’ sales.
2. It is calculated by dividing ending inventory by cost of goods
sold, and then multiplying the result by 365.
3. It estimates how many days it will take to convert inventory at
the end of a period into accounts receivable or cash.
C. Analysis of Inventory Management
Inventory management is a major emphasis for most
merchandisers; they must both plan and control inventory
purchases and sales. We prefer a high inventory turnover.
VI. Inventory Costing under a Periodic System (Appendix 5A)
Results of periodic vs. perpetual by method:
A. Specific identification—same results as perpetual.
B. First-in, first-out (FIFO)—same results as perpetual.
C. Last-in, first-out (LIFO)—results differ from perpetual because
timing of cost assignment changes what is identified as the last
cost.
D. Weighted average—results differ from perpetual because timing
of cost assignment changes what costs are averaged.
VII. Inventory Estimation Methods (Appendix 5B)
Inventory sometimes requires estimation for two reasons. First,
companies often require interim financial statements, but only take an
annual physical count of inventory. Second, companies may require an
inventory estimate if some casualty makes taking a physical count
impossible. Estimates are usually only required for companies that use
the periodic system.
A. Retail Inventory Method
The retail inventory method estimates the cost of ending
inventory for interim statements in a periodic inventory when a
physical count is taken only annually. Steps include: