AAT L4 Applied Management Accounting 2 — Questions and Answers
Question 1: A company uses activity-based costing. The cost driver for 'machine setups' is number of setups. Total setup costs are £48,000 and there are 160 setups in the period. Product A requires 40 setups. What is the setup cost allocated to Product A?
- £7,200
- £12,000 (Correct answer)
- £9,600
- £16,000
Correct answer: £12,000
The cost per setup is £48,000 ÷ 160 = £300. Product A uses 40 setups, so its allocation is 40 × £300 = £12,000.
Activity-based costing (ABC) allocates overhead costs based on the activities that drive those costs. The first step is to calculate the cost driver rate: total cost pool ÷ total cost driver quantity. Here, the cost driver rate = £48,000 ÷ 160 setups = £300 per setup. Product A requires 40 setups, so the cost allocated is 40 × £300 = £12,000. ABC provides more accurate product costing than traditional absorption costing because it recognises that different products consume overhead resources at different rates. A product requiring many setups should bear a higher share of setup costs regardless of its production volume. This is particularly valuable when a business produces a diverse range of products with different complexity levels, as traditional volume-based methods often under-cost low-volume, high-complexity products and over-cost high-volume, simple products.
Question 2: A business has fixed costs of £120,000 and a contribution to sales ratio (C/S ratio) of 40%. What is the breakeven sales revenue?
- £200,000
- £300,000 (Correct answer)
- £48,000
- £168,000
Correct answer: £300,000
Breakeven sales revenue = Fixed costs ÷ C/S ratio = £120,000 ÷ 0.40 = £300,000.
The breakeven point is where total revenue equals total costs, meaning contribution exactly covers fixed costs. The contribution to sales (C/S) ratio expresses contribution as a proportion of sales revenue. Breakeven sales revenue = Fixed costs ÷ C/S ratio = £120,000 ÷ 0.40 = £300,000. At £300,000 of sales, contribution is £300,000 × 40% = £120,000, which exactly covers fixed costs, resulting in zero profit. The C/S ratio is a powerful tool because once calculated, it allows rapid computation of breakeven and target profit levels. For every £1 of sales above breakeven, the business retains 40p as profit (the margin of safety contributes directly to profit once fixed costs are covered).
Question 3: Using a standard costing system, actual material used was 5,200 kg at £4.80 per kg. The standard was 5,000 kg at £5.00 per kg for actual production. What is the material usage variance?
- £960 Adverse
- £1,000 Adverse (Correct answer)
- £960 Favourable
- £1,000 Favourable
Correct answer: £1,000 Adverse
Material usage variance = (Standard quantity − Actual quantity) × Standard price = (5,000 − 5,200) × £5.00 = −£1,000, i.e. £1,000 Adverse.
Variance analysis separates price and usage effects so management can identify responsibility. The material usage variance measures whether more or less material was used than standard, valued at standard price to remove any price effects. Material usage variance = (Standard quantity for actual production − Actual quantity used) × Standard price per unit = (5,000 − 5,200) × £5.00 = −200 × £5.00 = −£1,000 Adverse. The variance is adverse because more material was used than the standard allowed. This would be investigated by the production manager, who is responsible for material usage efficiency. Note that actual price (£4.80) is not used here — that feeds into the price variance: (Standard price − Actual price) × Actual quantity = (£5.00 − £4.80) × 5,200 = £1,040 Favourable. Together, both variances explain the total material cost variance.
Question 4: A limiting factor analysis shows that Product X contributes £18 per unit and requires 3 machine hours, while Product Y contributes £20 per unit and requires 5 machine hours. Machine hours are the binding constraint. Which product should be prioritised?
- Product Y, as it has higher contribution per unit
- Product X, as it has higher contribution per machine hour (Correct answer)
- Product Y, as it uses more machine hours
- Both equally, as the difference is immaterial
Correct answer: Product X, as it has higher contribution per machine hour
Product X: £18 ÷ 3 hours = £6/hour. Product Y: £20 ÷ 5 hours = £4/hour. Product X generates more contribution per scarce resource hour, so it should be prioritised.
When a single binding constraint limits production, the optimal production plan maximises contribution per unit of the scarce resource, not contribution per unit of product. Product X: £18 contribution ÷ 3 machine hours = £6 per machine hour. Product Y: £20 contribution ÷ 5 machine hours = £4 per machine hour. Therefore Product X should be produced first to maximise total contribution. For example, if there are 300 machine hours available: producing only Product X yields 100 units × £18 = £1,800 contribution, whereas producing only Product Y yields 60 units × £20 = £1,200 contribution. Prioritising X gives 50% more total contribution. This principle is fundamental to limiting factor analysis. If there are multiple constraints, linear programming (using simultaneous equations or the simplex method) is required to find the optimal mix.
Question 5: A company operates a JIT (Just-in-Time) production system. Which of the following is a key characteristic of JIT?
- Maintaining high buffer stocks to prevent production stoppages
- Producing goods only when required by the customer (Correct answer)
- Batch producing to achieve economies of scale
- Holding large raw material inventories to secure bulk discounts
Correct answer: Producing goods only when required by the customer
JIT systems produce goods only in response to actual demand, eliminating the need to hold inventories and reducing waste across the production process.
Just-in-Time (JIT) is a lean production philosophy originating from Toyota's production system. Its core principle is to produce or procure items only when they are needed, in the quantity needed, eliminating all forms of waste (muda). Key JIT characteristics include: zero or minimal inventory levels, production triggered by actual customer demand (pull system rather than push), very short production lead times, high quality standards (defects are costly with no buffer stock), close relationships with reliable suppliers, and flexible multi-skilled workers. The benefits include reduced storage costs, lower working capital tied up in inventory, faster detection of quality problems, and improved responsiveness to customer demand. However, JIT is vulnerable to supply chain disruptions, requires highly reliable suppliers, and may not be suitable for all production environments. In management accounting terms, JIT conflicts with traditional absorption costing incentives (which reward high production volumes to spread fixed overhead), making throughput accounting or marginal costing more appropriate performance measures for JIT environments.
Question 6: The balanced scorecard includes four perspectives. Which perspective focuses on measures such as cycle time, defect rates, and process efficiency?
- Financial perspective
- Customer perspective
- Internal business process perspective (Correct answer)
- Learning and growth perspective
Correct answer: Internal business process perspective
The internal business process perspective focuses on the efficiency and effectiveness of internal operations, including production cycle times, defect rates, and process improvements.
The Balanced Scorecard, developed by Kaplan and Norton, provides a multidimensional framework for measuring organisational performance beyond purely financial metrics. It comprises four interconnected perspectives. The internal business process perspective asks: 'What must we excel at?' It measures the efficiency of key internal processes that create value for customers and shareholders. Typical measures include cycle time, throughput rate, defect rate, capacity utilisation, and cost per process step. The four perspectives are linked causally: learning and growth capabilities enable better internal processes; better processes deliver superior customer outcomes; satisfied customers drive financial performance. This cause-and-effect logic helps organisations identify which non-financial drivers lead to long-term financial success. For AAT Level 4, candidates should know all four perspectives and typical KPIs for each: Financial (ROI, profit margin, revenue growth), Customer (satisfaction scores, retention rate, market share), Internal Process (cycle time, defect rate, process cost), and Learning & Growth (employee training hours, staff turnover, innovation rate).
AAT L4 Applied Management Accounting 2
A company uses activity-based costing.
The cost driver for 'machine setups' is number of setups.
Total setup costs are £48,000 and there are 160 setups in the period.
Product A requires 40 setups.
What is the setup cost allocated to Product A?