A2CM-L09 — Limiting Factor Analysis

Understanding how scarce resources affect production decisions and how businesses maximise contribution when resources are limited.

Learning Objectives

By the end of this lesson students should be able to:

• understand break-even analysis

• calculate break-even point

• calculate margin of safety

• calculate target profit output

• interpret break-even charts

• evaluate the usefulness of break-even analysis

• answer examination-style questions

Concept Framework

What is a Limiting Factor?

A limiting factor is a resource that restricts a business from achieving its desired level of production or sales.

It is also known as a scarce resource or key factor.

Common Limiting Factors

• Skilled Labour Hours

• Machine Hours

• Raw Materials

• Production Capacity

• Storage Space

• Finance Availability

CORE TERMINOLOGY & FORMULAE

Contribution Per Limiting Factor

$Required\text{Contribution per Limiting Factor Unit}=\frac{\text{Contribution per Unit}}{\text{Limiting Factor Units Required}}$

Decision Rule

Rank products from highest contribution per limiting factor unit to lowest.

Allocate scarce resources starting with the highest-ranked product.

DECISION-MAKING PROCESS

Step 1

Identify the limiting factor.

Step 2

Calculate contribution per unit.

Step 3

Calculate contribution per limiting factor unit.

Step 4

Rank products.

Step 5

Allocate scarce resources to maximise total contribution.

Advantages

✓ Maximises contribution

✓ Improves resource utilisation

✓ Supports production planning

✓ Improves profitability

✓ Assists management decisions

Limitations

✓ Assumes one limiting factor

✓ Market demand may restrict sales

✓ Ignores qualitative factors

✓ Resource availability may change

📌 Limiting Factor Analysis is a major decision-making topic and frequently appears in examination questions involving scarce resources. Students should master: ✓ Contribution Calculations ✓ Product Ranking ✓ Resource Allocation ✓ Profit Maximisation Decisions ✓ Interpretation Questions 🎥 Full worked examples are available in the YouTube Learning Library. 📩 Students may submit limiting factor doubts through the Student Doubt Support facility.

Example 1 — Contribution Per Machine Hour Product A
Contribution per Unit:
£30
Machine Hours 3
Required:
Contribution per Machine Hour:£30 ÷ 3= £10

Example 2 — Product Ranking
Product A:
£10 per machine hour
Product B:
£15 per machine hour
Ranking:1. Product B
2. Product A

Example 3 — Resource Allocation
Available Machine Hours:
1,000
Allocate hours first to the product with the highest contribution per machine hour to maximise profit.

📌 Limiting Factor Analysis is a major decision-making topic and frequently appears in examination questions involving scarce resources.

Students should master:

✓ Contribution Calculations

✓ Product Ranking

✓ Resource Allocation

✓ Profit Maximisation Decisions

✓ Interpretation Questions

🎥 Full worked examples are available in the YouTube Learning Library.

📩 Students may submit limiting factor doubts through the Student Doubt Support facility.

Structured Practice

Level 1 – Concept Check

Define:

a) Limiting Factor

b) Contribution per Limiting Factor Unit

Level 2 – Application Practice

Explain why a business should rank products using contribution per limiting factor unit rather than contribution per unit.

Level 3 – Examination Style Question

1. 1. Product X
    Contribution per Unit:
    £24
    Machine Hours Required:
    4
    Calculate:
    a) Contribution per Machine Hour
    b) Explain how this figure assists management decision-making.
    (4 marks)
    📌 Additional structured questions are available in the 🎯 Question Papers + YouTube Explanation section.

∗ Additional structured questions are available in the Question Papers and YouTube Explanation section. Students should practise regularly and review video explanations for procedural clarity.

Enrolled students may submit questions from recognised textbooks, past examination papers or other genuine academic material for expert clarification through the Student Doubt Support facility.

Proficiency Check

Learn → Practise → Analyse → Evaluate

1. Can you identify limiting factors accurately?

2. Can you calculate contribution per limiting factor unit?

3. Can you rank products correctly?

4. Can you allocate scarce resources effectively?

5. Can you explain profit-maximisation decisions logically?

6. Can you evaluate the limitations of limiting factor analysis?

If unsure, revisit:
• Contribution Calculations
• Product Ranking
• Resource Allocation
• Worked Examples

Detailed Activity Solutions

Solution to Level 3 question

Contribution per Machine Hour

£24 ÷ 4

= £6

Management should compare this figure with other products and prioritise production of products generating the highest contribution per machine hour.

How This Topic Appears in the Examination

Common examination tasks include:

✓ Break-Even Calculations

✓ Margin of Safety Calculations

✓ Target Profit Calculations

✓ Break-Even Chart Interpretation

✓ Risk Analysis

✓ Management Decision-Making Questions

Self-Assessment Checklist

□ I understand limiting factors

□ I can calculate contribution per limiting factor unit

□ I can rank products accurately

□ I can allocate scarce resources logically

□ I can explain profit-maximisation decisions

□ I can answer examination questions confidently

Continue Your Preparation

Go beyond the lesson with curated resources, examination practice and video learning.

PREMIUM RESOURCES

Master the topic with curated learning, revision and assessment resources

GUESS PAPERS

Prepare for the examination with complete Guess Paper packages and Mark Schemes.

VIDEO ON DEMAND

Watch, revise and strengthen your understanding with Shasha Academy videos.