Numerical Illustrations on Break-Even Calculations, Contribution Margin Analysis, Decision-Making Scenarios Using Marginal Costing

1. Numerical Illustration on Break-Even Calculation (In Units)

Problem

A company sells a product at ₹100 per unit. The variable cost per unit is ₹60, and the fixed cost is ₹2,00,000.

Calculate the Break-Even Point (BEP) in units.

Solution

Step 1: Calculate Contribution per Unit

Contribution per Unit = Selling Price Variable Cost

= ₹100 − ₹60

= ₹40

Step 2: Calculate Break-Even Point

BEP (Units) = Fixed Cost / Contribution per Unit

= ₹2,00,000 / ₹40

Answer

The company must sell 5,000 units to reach the break-even point.

2. Numerical Illustration on Break-Even Calculation (Sales Value)

Problem

A company has:

  • Fixed Cost = ₹3,00,000
  • P/V Ratio = 30%

Calculate the Break-Even Sales Value.

Solution

BEP (Sales) = Fixed Cost / P/V Ratio

= ₹3,00,000 / 30%

3,00,000 /

Answer

The company will break even at ₹10,00,000 of sales.

3. Numerical Illustration on Contribution Margin Analysis

Problem

A company has the following information:

  • Sales = ₹8,00,000
  • Variable Costs = ₹5,00,000
  • Fixed Costs = ₹2,00,000

Calculate:

  • Contribution
  • Profit
  • P/V Ratio

Solution

Contribution

Contribution = Sales Variable Costs

= ₹8,00,000 − ₹5,00,000

Profit

Profit=Contribution−Fixed Costs

= ₹3,00,000 − ₹2,00,000

P/V Ratio

P/V Ratio = (Contribution / Sales) × 100

= (₹3,00,000 / ₹8,00,000) × 100

Answer

Particulars Amount
Contribution ₹3,00,000
Profit ₹1,00,000
P/V Ratio 37.5%

4. Decision-Making Scenario: Make or Buy Decision

Problem

A company requires 10,000 components.

  • Cost to manufacture per unit = ₹50
  • Purchase price from supplier = ₹55

Solution

Total Manufacturing Cost

10,000 × ₹50 = ₹5,00,000

Total Purchase Cost

10,000×₹55=₹5,50,00010,000 \times ₹55 = ₹5,50,000

Decision

Since manufacturing cost is lower, the company should make the components.

Savings

5,50,000 − ₹5,00,000

= ₹50,000

Answer

Manufacturing internally saves ₹50,000.

5. Decision-Making Scenario: Accepting a Special Order

Problem

A company has:

  • Selling Price = ₹200 per unit
  • Variable Cost = ₹140 per unit
  • Special Order Price = ₹170 per unit
  • Quantity Ordered = 2,000 units
  • Idle Capacity Available.

Solution

Contribution per unit:

170 − ₹140 = ₹30

Total Contribution:

= 2,000 × ₹30

Decision

Since the special order generates a positive contribution and idle capacity exists, the order should be accepted.

Answer

Additional profit earned = ₹60,000.

6. Decision-Making Scenario: Product Mix Decision

Problem

A company produces Products A and B.

Particulars A B
Contribution per Unit ₹60 ₹40
Labour Hours Required 3 1

Limited labour hours available = 3,000 hours.

Solution

Contribution per Labour Hour

For Product A:

60 / 3 = ₹20

For Product B:

40 / 1 = ₹40

Decision

Since Product B gives a higher contribution per labour hour, the company should give priority to Product B.

7. Decision-Making Scenario: Shut Down Decision

Problem

  • Contribution = ₹4,00,000
  • Avoidable Fixed Costs = ₹3,00,000

Solution

Since:

4,00,000 > ₹3,00,000

The contribution exceeds avoidable fixed costs.

Decision

The company should continue operations.

If contribution falls to ₹2,00,000:

2,00,000 < ₹3,00,000

The company should temporarily shut down operations.

8. Decision-Making Scenario: Margin of Safety

Problem

  • Actual Sales = ₹12,00,000
  • Break-Even Sales = ₹9,00,000

Solution

Margin of Safety = Actual Sales Break Even Sales

= ₹12,00,000 − ₹9,00,000

Margin of Safety Ratio

(₹3,00,000 / ₹12,00,000) × 100

Answer

  • Margin of Safety = ₹3,00,000
  • Margin of Safety Ratio = 25%

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