I. Understanding the Basics: Inventory and Stock Systems

• Inventory Valuation: Refers to trading stock bought for resale. Accurate valuation reflects financial position and profit/loss.
• Key Concepts:
  • Opening Stock
  • Purchases of stock (adjusted for donations/drawings)
  • Carriage on purchases
  • Customs/Import duties
  • Returns of stock
  • Closing Stock
• Inventory Systems:
  • Perpetual Inventory System:
    • Real-time tracking
    • Uses point-of-sale systems
    • Accurate cost of goods sold
    • Advantages: Realistic, surplus/deficit easily identified
  • Periodic Inventory System:
    • No real-time updates
    • Requires physical count at period-end
    • Cost of sales = Opening stock + Net purchases + Carriage + Duties - Closing stock
    • Advantages: Cheaper, simpler
  • Key Differences:
    • Perpetual: Trading Stock account, real-time updates
    • Periodic: Purchases account, periodic calculation

II. Stock Valuation Methods (Grade 12 Focus)

• 1. FIFO (First-In, First-Out):
  • Assumes oldest stock sold first
  • Used for items with expiry/fashion cycles
  • Closing stock = most recent purchases
  • Cost of sales = older prices
  • Returns: Adjust recent batch
  • Carriage: Add to cost; check refund policy
• 2. Weighted Average Method:
  • Average cost per unit
  • Used for similar, bulk items
  • Formula: (Total value ÷ Total units) × Units on hand
  • Cost of sales = average price
  • Missing items easier to track
• 3. Specific Identification:
  • Each item has its own cost
  • Used for unique, high-value items
  • Closing stock = cost of unsold items

III. Key Calculations & Formulas

• Closing Stock Value:
  • Specific Identification: Total value of unsold stock
  • FIFO: Units × cost of last batches
  • Weighted Average: (Total value ÷ Total units) × Units on hand
• Cost of Sales: Opening stock + Purchases + Carriage + Duties - Returns - Closing stock
• Gross Profit: Sales - Cost of Sales
• % Mark-up Achieved: (Gross Profit × 100) ÷ Cost of Sales
• Stock Holding Period: (Average Stock ÷ Cost of Sales) × 365
• Rate of Stock Turnover: Cost of Sales ÷ Average Stock
• Missing Items: Sales - Closing Stock (adjusted for opening stock and purchases)

IV. Internal Control Processes

• Minimize fraud
• Ensure accurate documentation
• Reconcile records with physical stock

V. Study Strategies & Practice

• Piecemeal approach with consolidation activities
• Supplement classwork and textbooks
• Progressive difficulty in examples
• Active reading and highlighting
• Interrogate worked examples
• Attempt activities independently
• Review and correct in different ink
• Practice with past papers
• Familiarize with answer books

Final Note: By working through these sections and practice activities, you’ll build a strong foundation in inventory valuation for your Grade 12 Accounting studies.