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166 11: Cost of goods sold and inventories ⏐ Part B Accounting systems and accounts preparation
1 The accounting treatment of inventories and carriage costs
The accruals concept requires us to match income with the expenses incurred in earning that income. Goods can be
unsold at the end of an accounting period and so still be held in inventory. The purchase cost of these goods should not
be included in the cost of sales of the period.
1.1 Example: cost of sales
Perry P Louis ends his financial year on 30 September each year. On 1 October 20X4 he had no goods in inventory.
During the year to 30 September 20X5, he purchased 30,000 umbrellas costing $60,000. He resold 20,000 of the
umbrellas for $5 each, and sales for the year amounted to $100,000. At 30 September there were 10,000 unsold
umbrellas left in inventory. What was Perry P Louis
's gross profit for the year?
Solution
Perry P Louis purchased 30,000 umbrellas, but only sold 20,000. Purchase costs of $60,000 and sales of $100,000 do
not represent the same quantity of goods. The gross profit for the year is calculated by
'matching' the sales value of the
20,000 umbrellas sold with the cost of those 20,000 umbrellas.
$
$
Sales (20,000 units)
100,000
Purchases (30,000 units)
60,000
Less closing inventory (10,000 units @ $2)
20,000
Cost of sales (20,000 units)
40,000
Gross profit
60,000
1.2 Example continued
The next accounting year is 1 October 20X5 to 30 September 20X6. During the course of this year, Perry P Louis
purchased 40,000 umbrellas at a total cost of $95,000. During the year he sold 45,000 umbrellas for $230,000. At 30
September 20X6 he had 5,000 umbrellas left in inventory, which had cost $12,000.
What was his gross profit for the year?
Solution
In this accounting year he purchased 40,000 umbrellas to add to the 10,000 he already had in inventory at the start of
the year. He sold 45,000, leaving 5,000 umbrellas in inventory at the year end. Once again, gross profit should be
calculated by matching the value of 45,000 units of sales with the cost of those 45,000 units.
The cost of sales is the value of the 10,000 umbrellas in inventory at the beginning of the year, plus the cost of the
40,000 umbrellas purchased, less the value of the 5,000 umbrellas in inventory at the year end.
$
$
Sales (45,000 units)
230,000
Opening inventory (10,000 units) *
20,000
Add purchases (40,000 units)
95,000
115,000
Less closing inventory (5,000 units)
12,000
Cost of sales (45,000 units)
103,000
Gross profit
127,000
*Taken from the closing inventory value of the previous accounting year, see example 1.1.
FA
T F
RWAR
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