Costs: Approaches To Costing: Full, Contribution (Copy)

5.4.2 Approaches To Costing: Full, Contribution

1. The Differences Between Full And Contribution Costing

Full Costing (Absorption Costing)

• Definition: Allocates all costs (both fixed and variable) to units of output.
• Characteristics:
  • Each product carries a share of both direct and indirect costs.
  • Ensures all production costs are accounted for in product pricing.
• Example: A car manufacturer includes rent, insurance, and factory overheads in the cost per car.

Contribution Costing (Marginal Costing)

• Definition: Considers only variable costs when calculating product cost, leaving fixed costs treated as period costs.
• Characteristics:
  • Focuses on the contribution each unit makes towards covering fixed costs and profit.
  • More useful for short-term decision-making.
• Example: A bakery analysing whether to take a special order only looks at variable costs (flour, labour) rather than allocating rent or admin costs.

Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change AS Level Business Full Scale Course

2. The Uses And Limitations Of The Full Costing Method

Uses

• Provides a comprehensive picture of product cost.
• Useful for long-term pricing decisions where all costs must be recovered.
• Required for financial reporting under accounting standards.
• Helps ensure overheads are allocated fairly across product lines.
• Example: Large manufacturers use full costing to set sustainable product prices.

Limitations

• Arbitrary allocation of overheads may distort cost per unit.
• Less useful for short-term decisions where fixed costs are not directly relevant.
• Complex and time-consuming to calculate.
• May discourage acceptance of profitable special orders (if only variable costs are considered).

3. The Nature Of The Technique Of Contribution Costing

• Contribution Definition:
  Contribution = Sales Revenue – Variable Costs
• Purpose:
  • To measure how much each unit contributes towards covering fixed costs and generating profit.
  • Aids decision-making in situations like accepting extra orders, determining break-even point, and product mix optimisation.
• Example:
  • A chair sells for $100.
  • Variable cost = $60.
  • Contribution = $40.
  • If fixed costs = $40,000, then 1,000 chairs are required to break even.

Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change AS Level Business Full Scale Course

4. The Difference Between Contribution And Profit

• Contribution
  • Covers fixed costs first, then adds to profit.
  • Formula: Contribution = Sales Revenue – Variable Costs.
• Profit
  • The surplus after both variable and fixed costs are deducted.
  • Formula: Profit = Contribution – Fixed Costs.
• Key Distinction
  • Contribution is about covering fixed costs; profit only exists after fixed costs are fully covered.
• Example:
  • Sales = $50,000; Variable Costs = $30,000 → Contribution = $20,000.
  • Fixed Costs = $15,000 → Profit = $5,000.

5. The Limitations Of Contribution Costing

• Ignores fixed costs in product costing → not suitable for financial reporting.
• May oversimplify decision-making if fixed costs are significant in the long term.
• Contribution per unit may change due to economies of scale or fluctuating costs.
• Not appropriate for businesses with high fixed costs relative to variable costs (e.g., airlines).

Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change AS Level Business Full Scale Course

6. Situations In Which Contribution Costing Would Be And Would Not Be Used

Situations Where Contribution Costing Would Be Used

• Special Order Decisions: Determining whether to accept an order at a lower price if it covers variable costs.
• Break-Even Analysis: Identifying the level of sales needed to cover all costs.
• Product Mix Decisions: Choosing the most profitable combination of products when resources are limited.
• Short-Term Planning: Assessing the impact of pricing changes or promotions.
• Example: An airline offering discounted seats if contribution covers fuel and staff costs.

Situations Where Contribution Costing Would Not Be Used

• Financial Reporting: Fixed costs cannot be ignored in official accounts.
• Long-Term Pricing: Businesses must recover both fixed and variable costs for sustainability.
• Capital Investment Decisions: Full costs, including depreciation, must be considered.
• Example: A manufacturer setting long-term selling prices must use full costing to ensure total cost recovery.

7. Strategic Importance Of Using Both Approaches

• Full Costing: Best for long-term planning, external reporting, and setting sustainable prices.
• Contribution Costing: Best for short-term, tactical decisions requiring speed and flexibility.
• Many firms use both methods together: contribution costing for operational choices and full costing for financial stability.
• Example: Coca-Cola may use contribution costing to decide temporary promotions but rely on full costing for overall profitability.

Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change AS Level Business Full Scale Course