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Sara's Boutique has the following transactions related to its top-selling Gucci purse for the month of October. Sara's Boutique uses a periodic inventory system.

\begin{tabular}{lllll}
Date & \multicolumn{1}{c}{Transactions} & Units & Unit Cost & Total Cost \\
October 1 & Beginning inventory & 6 & \[tex]$700 & \$[/tex]4,200 \\
October 4 & Sale & 4 & & \\
October 10 & Purchase & 5 & \[tex]$710 & \$[/tex]3,550 \\
October 13 & Sale & 3 & & \\
October 20 & Purchase & 4 & \[tex]$720 & \$[/tex]2,880 \\
October 28 & Sale & 7 & & \\
October 30 & Purchase & 8 & \[tex]$730 & \$[/tex]5,840 \\
\end{tabular}

3. Using LIFO, calculate ending inventory and cost of goods sold at October 31.

\begin{tabular}{|l|l|}
\hline
Ending inventory & \\
\hline
Cost of goods sold & \\
\hline
\end{tabular}



Answer :

Given the transactions at Sara's Boutique for October, we need to calculate the ending inventory and the cost of goods sold (COGS) using the Last-In-First-Out (LIFO) method.

Let's go through the process step by step:

### 1. Calculate Total Units Purchased and Total Units Sold

#### Units Purchased:
- Beginning inventory (October 1): 6 units
- Purchase on October 10: 5 units
- Purchase on October 20: 4 units
- Purchase on October 30: 8 units

Adding these, the total units purchased:

[tex]\[ 6 + 5 + 4 + 8 = 23 \, \text{units} \][/tex]

#### Units Sold:
- Sale on October 4: 4 units
- Sale on October 13: 3 units
- Sale on October 28: 7 units

Adding these, the total units sold:

[tex]\[ 4 + 3 + 7 = 14 \, \text{units} \][/tex]

### 2. Calculate Ending Inventory

Starting inventory + Purchases - Sales = Ending inventory

[tex]\[ 6 + 17 - 14 = 9 \, \text{units} \][/tex]

### 3. Calculate Cost of Ending Inventory using LIFO

Using the LIFO method, we will take the cost of the most recent purchases first for the units that are left in the inventory.

- Last purchase (October 30): 8 units at [tex]$730/unit - Second last purchase (October 20): 1 unit at $[/tex]720/unit

So the calculation for the ending inventory cost is as follows:

[tex]\[ 8 \, \text{units} \times \$730 = \$5840 \][/tex]
[tex]\[ 1 \, \text{unit} \times \$720 = \$720 \][/tex]

Adding these together, we get:

[tex]\[ \$5840 + \$720 = \$6560 \][/tex]

### 4. Calculate Cost of Goods Sold (COGS) using LIFO

Using LIFO, we calculate COGS by subtracting the ending inventory cost from the total cost of available inventory:

Total cost of available goods:

- Beginning inventory: [tex]\(6 \, \text{units} \times \$700 = \$4200\)[/tex]
- Purchase on October 10: [tex]\(5 \, \text{units} \times \$710 = \$3550\)[/tex]
- Purchase on October 20: [tex]\(4 \, \text{units} \times \$720 = \$2880\)[/tex]
- Purchase on October 30: [tex]\(8 \, \text{units} \times \$730 = \$5840\)[/tex]

[tex]\[ \text{Total cost} = \$4200 + \$3550 + \$2880 + \$5840 = \$16470 \][/tex]

Ending Inventory Value (calculated from LIFO): [tex]\( \$6560 \)[/tex]

Thus, the Cost of Goods Sold (COGS) is:

[tex]\[ COGS = \text{Total cost} - \text{Ending Inventory Value} \][/tex]
[tex]\[ COGS = \$16470 - \$6560 = \$9910 \][/tex]

### Summarized Results:
- Ending Inventory (October 31): [tex]\( \$6560 \)[/tex]
- Cost of Goods Sold (October 31): [tex]\( \$9910 \)[/tex]

These results give us a clear picture of the cost assignment for inventory and sales for Sara's Boutique for the month of October using the LIFO method.