Welcome to the World of Inventories!
Hello there! Today, we are diving into the world of Inventories. Think of inventory as the heartbeat of a trading business. If you’ve ever walked into a stationery shop or a clothing store, every item sitting on the shelf waiting to be sold is inventory.
In this chapter, we will learn how businesses manage these items, how they decide what they are worth, and how they calculate profit when they sell them. Don't worry if it seems like a lot to take in; we will break it down piece by piece!
1. What is Inventory and Why Do We Need It?
Inventory (or "stock") refers to the goods that a business has purchased specifically for the purpose of reselling them to customers to make a profit.
Why do businesses keep inventory?
Imagine going to your favorite bubble tea shop, and they tell you they ran out of pearls. You’d be disappointed, right? Businesses keep inventory to avoid out-of-stock situations. If they have goods ready, they can meet customer demand immediately and keep their customers happy.
How Businesses Manage Inventory
It’s not just about buying stuff; it’s about looking after it! Businesses manage inventory by:
1. Keeping proper records: Tracking every item that comes in and goes out.
2. Physical security: Keeping items safe in a warehouse or locked store.
3. Insurance: Buying insurance to protect the business if the inventory is stolen or destroyed by fire.
Quick Review: Inventory is held for resale. Keeping enough "stock" ensures you don't lose sales to competitors!
2. Making Decisions: What Should We Buy?
When a business owner decides which inventory to buy, they look at two types of information:
A. Accounting Information (The Numbers)
- Cost of Inventory: Is it affordable?
- Storage Cost: How much does it cost to keep it in a warehouse?
- Gross Profit Margin: How much profit will we make on each sale?
- Rate of Inventory Turnover: How fast does this item sell?
B. Non-Accounting Information (The "Vibe" and Facts)
- Types of Storage: Does it need a fridge? A dry shelf?
- Nature of Product: Is it fragile? Does it expire quickly (like bread)?
- Customer Preference: Is this item "trendy" or what customers actually want?
Analogy: Imagine you are starting a sneaker business. Accounting info tells you the sneakers cost \$50 to buy. Non-accounting info tells you that "Neon Green" is the popular color this month!
Key Takeaway: A good manager looks at both the dollar signs and the physical reality of the product.
3. The Golden Rule: Valuing Inventory
How do we put a "price tag" on the inventory left in our shop at the end of the year for our financial statements? We use the Lower of Cost and Net Realisable Value (NRV) rule.
- Cost: The original price paid to buy the item + any costs to bring it to its current location (like freight/delivery charges).
- Net Realisable Value (NRV): The estimated selling price minus any costs needed to make the sale (like repair costs or delivery to the customer).
The Theory: Prudence
We use this rule because of the Prudence Theory. This theory says we should never overstate our assets or profit. By picking the lower value, we ensure our "Inventory" asset on the Statement of Financial Position is not reported at an unrealistically high value.
Example:
You bought a smartphone for \$800 (Cost). However, it was a display unit and got a scratch. You can now only sell it for \$700 (NRV).
Value to record: \$700 (the lower one!).
The difference (\$100) is called an Impairment Loss on Inventory.
Did you know? If you record inventory at a price higher than you can actually sell it for, you are essentially lying to yourself about how much your business is worth!
4. The FIFO Method (First-In, First-Out)
In POA 7087, we use the Perpetual Inventory Recording Method and the FIFO costing method.
FIFO assumes that the first items you bought are the first ones you sell.
Think of it like a carton of milk in a supermarket. The staff puts the oldest milk at the front so customers buy it first.
Calculating Cost of Sales and Ending Inventory
When prices change, FIFO helps us decide which "cost" to use when we sell an item.
Step-by-step FIFO logic:
1. Look at your earliest batch of inventory.
2. Use the cost of that batch for your Cost of Sales.
3. If you sell more than what was in the first batch, move to the next batch.
4. The items "left over" (Ending Inventory) will be from the most recent batches.
Key Takeaway: FIFO = Oldest costs go to the Income Statement (Cost of Sales); Newest costs stay on the Balance Sheet (Inventory).
5. Measuring Efficiency: Inventory Ratios
How do we know if we are managing our "stuff" well? We use two main formulas:
A. Rate of Inventory Turnover (Times)
This shows how many times a business replaces its inventory in a year. Higher is usually better!
\( \text{Inventory Turnover (times)} = \frac{\text{Cost of Sales}}{\text{Average Inventory}} \)
Where Average Inventory = \( \frac{\text{Beginning Inventory} + \text{Ending Inventory}}{2} \)
B. Days Sales in Inventory (Days)
This shows how many days it takes, on average, to sell the inventory. Lower is usually better!
\( \text{Days Sales in Inventory} = \frac{\text{Average Inventory}}{\text{Cost of Sales}} \times 365 \text{ days} \)
Common Mistake: Using "Sales Revenue" instead of "Cost of Sales" in these formulas. Remember, inventory is recorded at cost, so we must compare it to Cost of Sales!
6. Impact of Errors (The "Oops" Moments)
Sometimes, we might count our inventory wrongly. This has a "knock-on" effect on our profits for the current financial period.
- If Ending Inventory is Overstated (Too high): Cost of Sales becomes too low \(\rightarrow\) Gross Profit is Overstated (Too high).
- If Ending Inventory is Understated (Too low): Cost of Sales becomes too high \(\rightarrow\) Gross Profit is Understated (Too low).
Memory Trick: Ending Inventory and Profit are "Best Friends." They always move in the same direction. If one is too high, the other is too high!
7. Summary & Presentation
Where do these items appear in the final accounts?
Statement of Financial Performance (Trading Account portion)
Net Sales Revenue (Sales - Sales Returns)
less Cost of Sales
= Gross Profit
Note: Impairment loss on inventory is listed under "Other Expenses".
Statement of Financial Position
Inventory is listed under Current Assets at the Lower of Cost and NRV.
Key Takeaway Summary:
1. Inventory is for resale.
2. Value it at the Lower of Cost and NRV (Prudence Theory).
3. Use FIFO to find the cost of what you sold.
4. High turnover = efficient business!
Don't worry if the FIFO calculations seem tricky at first. Practice with a few "inventory cards" or tables, and you'll be a pro in no time!