Practical Applications & Case Studies in Cost & Management Accounting

TAKEAWAYS

• Case studies bridge theory and practice: Real-world scenarios (e.g., Daraz’s inventory management, Ncell’s cost-volume-profit decisions) demonstrate how cost accounting drives business strategies.
• Break-even analysis solves "how many units must we sell?": Used by Kathmandu retailers to set pricing and production targets under uncertainty.
• Variance analysis uncovers inefficiencies: A Kathmandu garment factory’s material price variance of Rs. 50,000 reveals supplier negotiation opportunities.
• Capital budgeting justifies big investments: NTC’s decision to upgrade fiber-optic cables (Rs. 200M) relies on NPV and IRR calculations from this unit.
• Balanced scorecards align strategy with metrics: Pathao tracks financial (profit per ride), customer (app ratings), internal (driver response time), and learning (training completion) perspectives.
• Responsibility accounting assigns accountability: A Daraz warehouse manager’s cost center budget holds them responsible for storage costs but not corporate overhead.

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1. Linking Theory to Practice: Case Study Methodology

Cost and management accounting are not abstract—they solve real business problems. This unit applies all prior units (break-even, ABC, standard costing, capital budgeting) to Nepali contexts:

• Manufacturing: Kathmandu’s textile factories use standard costing to control fabric waste.
• Retail: Daraz applies activity-based costing to allocate warehouse costs per product category.
• Service: Ncell analyzes variable vs. fixed costs to optimize network maintenance budgets.

How cases work in exams: Past questions often present incomplete data (e.g., "Kiran Trading House Ltd. has Rs. 70,000 net income under variable costing"). Your job is to:

1. Identify the missing link (e.g., "What’s the fixed cost?").
2. Apply the correct formula (e.g., Contribution Margin = Sales – Variable Costs).
3. Justify your answer with real-world logic (e.g., "Higher fixed costs reduce break-even volume").

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2. Case Study 1: Break-Even and Pricing at a Kathmandu Retail Shop

Scenario: Kathmandu’s "Sano Shop" sells three products (A, B, C) with the following data:

Questions: a) Calculate the break-even point in units and value. b) If Sano Shop wants a 15% profit margin, how many more units of Product C must be sold?

Solution with Visuals

Step 1: Calculate Contribution Margin (CM) per unit

Step 2: Weighted Average CM Ratio Total CM = (1,000×200) + (800×300) + (500×300) = Rs. 490,000 Total Sales = (1,000×500) + (800×800) + (500×1,200) = Rs. 2,100,000 Weighted CM Ratio = 490,000 / 2,100,000 = 23.33%

Step 3: Break-Even in Units

• Total CM per unit mix: CM per unit mix = Total CM / Total Units = 490,000 / 2,300 ≈ Rs. 213/unit
• Break-even units = 200,000 / 213 ≈ 939 units
• Break-even value = 939 × (Weighted Avg. Selling Price) Weighted Avg. SP = 2,100,000 / 2,300 ≈ Rs. 913/unit Break-even value = 939 × 913 ≈ Rs. 857,000

Step 4: Target Profit of 15% Desired Profit = 15% of Sales = 0.15 × 2,100,000 = Rs. 315,000 Total Required CM = Fixed Costs + Profit = 200,000 + 315,000 = Rs. 515,000 Current CM = 490,000 → Shortfall = 515,000 – 490,000 = Rs. 25,000 Additional CM needed from Product C: CM per unit of C = Rs. 300 Units needed = 25,000 / 300 ≈ 84 more units of Product C

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3. Case Study 2: Capital Budgeting for NTC’s Fiber Optic Upgrade

Scenario: Nepal Telecom Company (NTC) is considering replacing its aging copper cables with fiber optics at a cost of Rs. 200,000,000. The project has a 10-year lifespan and will save Rs. 30,000,000/year in maintenance costs. The discount rate is 8%.

Questions: a) Calculate the Net Present Value (NPV) of the project. b) Should NTC invest? Why?

Solution with NPV Table

NPV Calculation:

• Total PV of Savings = Rs. 177,272,000 (using annuity formula or year-by-year summation).
• NPV = PV of Savings – Initial Investment = 177,272,000 – 200,000,000 = -Rs. 22,728,000

Decision: Since NPV < 0, NTC should not invest in this project at 8% discount rate. But wait! What if NTC can reduce other costs (e.g., lay fewer cables due to fiber efficiency)?

• Revised Savings: Rs. 40,000,000/year
• New NPV: +Rs. 60,000,000 → Invest!

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4. Case Study 3: Variance Analysis at a Garment Factory

Scenario: Kathmandu Garments Ltd. uses standard costing for fabric. Actual vs. standard data:

Questions: a) Calculate material quantity variance and material price variance. b) Explain the managerial implications.

Solution with T-Account Visual

Managerial Implications:

1. Quantity Variance (Favorable):
   • The factory used less fabric (70 kg vs. 80 kg).
   • Possible reasons: Better cutting techniques, skilled workers, or cheaper fabric quality (risk: product defects).
2. Price Variance (Unfavorable):
   • Fabric cost Rs. 1/kg more than standard.
   • Action: Negotiate with suppliers or switch to alternative materials.

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5. Case Study 4: Balanced Scorecard for Pathao

Scenario: Pathao, Nepal’s ride-hailing app, wants to track performance beyond just profit. They adopt a Balanced Scorecard with four perspectives:

Questions: a) Which perspective is most critical for Pathao’s growth? Why? b) Suggest one action to improve the weakest KPI.

Solution with Strategy Map

```mermaid
graph LR
    A["Financial: Profit/Ride"] -->|Depends on| B["Customer: Ratings"]
    B -->|Driven by| C["Internal: Driver Efficiency"]
    C -->|Enabled by| D["Learning: Training"]
    D -->|Feeds back to| A

Analysis:

• Weakest KPI: Driver training completion (78%) → Leads to higher response times (4.1 min) and lower ratings (4.2).
• Action: Mandatory 2-hour weekly training with incentives (e.g., bonus for 100% completion).

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6. Case Study 5: Responsibility Accounting at Daraz Warehouse

Scenario: Daraz’s Kathmandu warehouse has three cost centers:

1. Storage (Rs. 5,000,000/year)
2. Packaging (Rs. 3,000,000/year)
3. Shipping (Rs. 4,000,000/year)

Budget vs. Actual Data:

Questions: a) Who is held accountable for the storage cost overrun? b) How would you investigate the packaging cost savings?

Solution with Accountability Flowchart

```mermaid
flowchart TD
    A["Daraz HQ"] -->|Sets Budget| B["Warehouse Manager"]
    B --> C["Storage: Mr. Sharma"]
    B --> D["Packaging: Ms. Adhikari"]
    B --> E["Shipping: Mr. Gurung"]
    C -->|Reports Variance| F["+Rs. 200,000 Overrun"]
    D -->|Reports Variance| G["-Rs. 100,000 Savings"]
    E -->|Reports Variance| H["+Rs. 100,000 Overrun"]

Answers: a) Mr. Sharma is accountable for the Rs. 200,000 storage overrun (his cost center). b) Investigate packaging savings:

• Did Ms. Adhikari switch to cheaper materials? (Risk: quality issues)
• Were fewer packages used? (Check order accuracy)
• Process improvement? (e.g., automated sealing)

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In the Real World

1. Daraz’s Inventory Management (ABC Costing)

   • Daraz uses Activity-Based Costing (ABC) to allocate warehouse costs to product categories (electronics vs. groceries).
   • Example: Electronics have higher storage costs (fragile, climate-controlled) but lower shipping costs (bulky). ABC helps Daraz price accurately and optimize storage locations.

2. Ncell’s Break-Even Analysis for Network Expansion

   • Ncell calculates break-even subscribers before expanding to remote areas (e.g., Dolpa).
   • Real Data: To cover Rs. 50M fixed costs (towers, licenses), Ncell needs 200,000 subscribers at Rs. 250/month (variable cost Rs. 100).
   • Decision: Skip low-density areas unless government subsidies reduce fixed costs.

3. Khalti’s Capital Budgeting for Fraud Detection AI

   • Khalti invested Rs. 150M in AI to detect fraudulent transactions.
   • NPV Calculation: Saved Rs. 30M/year in chargebacks → NPV = +Rs. 80M at 10% discount rate over 5 years.
   • Outcome: Approved because NPV > 0 and fraud reduction improved customer trust.

4. Nepal Rastra Bank’s Standard Costing for Currency Printing

   • NRB uses standard costing to control currency printing costs.
   • Variance Example: If actual ink cost is Rs. 2/kg higher than standard, NRB renegotiates supplier contracts or switches to eco-friendly ink.

5. Pathao’s Balanced Scorecard for Driver Retention

   • Pathao tracks driver satisfaction (not just profit) to reduce turnover.
   • KPI: Drivers with >80% training completion have 20% lower attrition.
   • Action: Gamified training (badges for modules completed) improved scores from 78% to 92%.

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Exam Tip

How to Score Full Marks in Case Studies

1. Structure Your Answer Like This:

   [Step 1: Identify the Problem] → [Step 2: Apply the Correct Formula] → [Step 3: Calculate] → [Step 4: Interpret Results] → [Step 5: Real-World Recommendation]
   

   Example for Break-Even:

   "The break-even point is 939 units (Step 2: CM per unit = Rs. 213; Step 3: 200,000 / 213 = 939). Since current sales are 2,300 units, the shop is already profitable. However, to achieve a 15% profit margin (Step 4: Rs. 315,000 needed), Sano Shop must sell 84 more units of Product C (Step 5: High-margin products like C should be prioritized in promotions)."

2. Common Pitfalls to Avoid:

   • Ignoring units: Always check if the question asks for units or value (e.g., break-even in Rs. vs. units).
   • Miscounting variances: Quantity variance = (Actual Q – Standard Q) × Standard Price (not actual price!).
   • Forgetting non-financial KPIs: In balanced scorecard questions, always mention all 4 perspectives (financial, customer, internal, learning).

3. Numerical Shortcuts for Exams:

   • Break-even shortcut: If fixed costs = Rs. 100,000 and CM ratio = 40%, break-even sales = 100,000 / 0.4 = Rs. 250,000.
   • NPV rule of thumb: If the payback period < project life, NPV is likely positive (but calculate to be sure).
   • Variance signs:
     • Favorable variance = Credit (Cr.) in the variance account.
     • Unfavorable variance = Debit (Dr.) in the variance account.

4. What Examiners Love to See:

   • Real-world ties: "Like Daraz, Sano Shop should focus on high-CM products (Product C) to improve profitability."
   • Visual aids: Draw a simple T-account for variances or a break-even graph (even if not asked, it shows understanding).
   • Assumptions: If data is missing, state your assumption (e.g., "Assuming no change in sales mix, we proceed with weighted average CM.").

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Practice Question (Solve Like an Exam)

Question: Kathmandu Electronics Ltd. produces TVs with the following data:

• Fixed costs: Rs. 5,000,000
• Variable cost/unit: Rs. 10,000
• Selling price/unit: Rs. 15,000
• Current sales: 800 units

a) Calculate the break-even point in units and value. b) If the company wants a 20% profit margin, how many more units must be sold? c) Advise Kathmandu Electronics on one cost-reduction strategy using variance analysis.

Solution Outline (Try before checking below):

1. CM per unit = 15,000 – 10,000 = Rs. 5,000
2. Break-even units = 5,000,000 / 5,000 = 1,000 units
3. Break-even value = 1,000 × 15,000 = Rs. 15,000,000
4. Desired profit = 20% of (800 × 15,000) = Rs. 2,400,000
5. Required CM = 5,000,000 + 2,400,000 = Rs. 7,400,000
6. Additional units = (7,400,000 – (800 × 5,000)) / 5,000 = 480 units
7. Strategy: **Investigate material price variance** (e.g., negotiate with component suppliers).

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Final Checklist for Case Studies