📚 AS Cambridge Accounting: Case Study Practical Exercises | AS 剑桥会计：案例分析实战演练
Case study questions form the core of AS Level Accounting. They bridge textbook theory and real-world financial reporting by asking you to interpret a scenario, process adjustments, and prepare statements. Mastering them builds both technical accuracy and analytical confidence.
案例分析题是AS会计的核心内容。这类题目将课本理论与现实财务报告联系起来，要求你解读情境、处理调整并编制报表。掌握案例分析既能提高技术准确性，也能增强分析信心。
1. The Nature of Case Study Questions | 案例题的本质
In Cambridge AS Accounting, a typical case study gives you a trial balance along with several notes containing additional information. Your task is to produce an income statement and a statement of financial position, and often to calculate some accounting ratios.
在剑桥AS会计中，典型的案例题会给你一份试算平衡表以及若干带附加信息的附注。你的任务是编制利润表和财务状况表，通常还要计算一些会计比率。
Success depends on your ability to classify items, apply adjustments, and maintain the balance of the accounting equation. The examiner tests not just your memory of formats, but your judgement under slightly unfamiliar conditions.
成功取决于你分类项目、应用调整以及保持会计等式平衡的能力。考官不仅测试你对格式的记忆，更考察你在略有陌生的条件下的判断力。
2. Introducing Our Mini Case: TechStore Ltd. | 引入小型案例：TechStore Ltd.
Let us work through a compact but representative example. TechStore Ltd. is a gadget retailer. Its unadjusted trial balance at 31 December 2023 is shown below, together with the supplementary notes that follow.
让我们通过一个紧凑但有代表性的例子来操练。TechStore Ltd.是一家电子产品零售商，其2023年12月31日未调整的试算平衡表及补充附注如下所示。
| Account | Debit £ | Credit £ |
|---|---|---|
| Sales revenue | 198,000 | |
| Purchases | 112,000 | |
| Inventory at 1 Jan 2023 | 21,500 | |
| Wages and salaries | 38,400 | |
| Rent | 9,600 | |
| Administration expenses | 7,200 | |
| Equipment at cost | 45,000 | |
| Accumulated depreciation – equipment | 12,000 | |
| Trade receivables | 23,400 | |
| Trade payables | 14,300 | |
| Cash at bank | 4,100 | |
| 5% Bank loan (repayable 2027) | 20,000 | |
| Ordinary share capital (£1 shares) | 30,000 | |
| Retained earnings | 8,600 | |
| Total | 261,200 | 261,200 |
Notes: (1) Inventory at 31 December 2023 cost £22,800. (2) Rent prepaid at year end £800. (3) Accrued wages £1,100. (4) Depreciate equipment 20% per annum on cost. (5) Create an allowance for doubtful debts of 5% of trade receivables. (6) Bank loan interest for the year has not been recorded.
附注： (1) 2023年12月31日存货成本£22,800。 (2) 年末预付租金£800。 (3) 应付未付工资£1,100。 (4) 设备按每年原值的20%计提折旧。 (5) 按应收账款余额的5%计提坏账准备。 (6) 当年银行贷款利息尚未记录。
3. Decoding Adjustments from the Notes | 从附注中解码调整项
Every note gives rise to a double entry that you must visualise. The trial balance is only a starting point; your job is to transform it into the 'adjusted' figures that appear in the financial statements.
每条附注都会产生一笔你必须想到的复式分录。试算平衡表只是一个起点；你的工作是把它转化为财务报表中出现的“调整后”数字。
For inventory, the closing figure replaces the opening figure in the cost of sales calculation. No entry appears inside the trial balance itself, but you must use both inventory amounts when calculating gross profit.
对于存货，期末值在计算销售成本时替代期初值。试算平衡表内不会出现这笔分录，但你在计算毛利时必须同时使用两个存货金额。
The prepaid rent reduces the rent expense charged to the income statement. The adjustment is: credit Rent expense £800, debit Prepaid rent (asset) £800.
预付租金会减少计入利润表的租金费用。调整分录为：贷记租金费用£800，借记预付租金（资产）£800。
Accrued wages add a liability and increase the expense. Credit Accrued wages £1,100, debit Wages and salaries £1,100.
应计工资增加一项负债并增加费用。贷记应计工资£1,100，借记工资与薪资£1,100。
se expenses and the accumulated depreciation on the balance sheet. The annual charge is 20% × £45,000 = £9,000.
折旧会增加费用以及资产负债表上的累计折旧。年折旧额为20% × £45,000 = £9,000。
lowance for doubtful debts reduces trade receivables to their expected realisable value. 5% × £23,400 = £ no allowance existed before, the whole amount flows to the income statement as an expense.
坏账准备将应收账款降至其预计可变现净值。5% × £23,400 = £1,170。若之前无准备，则该全额作为费用进入利润表。
Bank loan interest is an accrued finance cost. The annual interest is 5% × £20,000 = £1,000. Record: debit Interest expense £1,000, credit Accrued interest £1,000.
银行贷款利息是一项应计财务费用。年利息为5% × £20,000 = £1,000。记录：借记利息费用£1,000，贷记应计利息£1,000。
4. Constructing Cost of Sales and Gross Profit | 构建销售成本与毛利
The formula is fundamental: Cost of Sales = Opening Inventory + Purchases – Closing Inventory. For TechStore: £21,500 + £112,000 – £22,800 = £110,700.
基本公式是：销售成本 = 期初存货 + 采购 – 期末存货。对TechStore：£21,500 + £112,000 – £22,800 = £110,700。
Gross Profit = Sales Revenue – Cost of Sales = £198,000 – £110,700 = £87,300
毛利 = 销售收入 – 销售成本 = £198,000 – £110,700 = £87,300
Gross profit is the first indicator of trading performance. In a case study, getting this figure wrong cascades errors through the entire income statement, so always double-check your inventory values.
毛利是交易业绩的第一个指标。在案例分析中，算错这个数字会导致整个利润表出现连锁错误，因此务必反复核对存货数值。
5. Handling Non-Current Assets and Depreciation | 处理非流动资产与折旧
Equipment must be shown on the statement of financial position at carrying amount: Cost £45,000 less accumulated depreciation. Accumulated depreciation becomes £12,000 + £9,000 = £21,000, giving a net book value of £24,000.
设备必须在财务状况表上按账面净值列示：原值£45,000减累计折旧。累计折旧变为£12,000 + £9,000 = £21,000，得出账面净值£24,000。
The depreciation charge of £9,000 appears in the income statement as part of distribution costs or administrative expenses, depending on the nature of the asset. For a retailer, shop equipment is usually an administrative expense.
折旧费用£9,000在利润表中作为销售费用或管理费用的一部分列示，具体取决于资产的性质。对零售商而言，商店设备通常属于管理费用。
6. Bad Debts and Allowance Entries | 坏账与准备分录
measure. It reduces the trade receivables figure on the statement of financial position to £23,400 – £1,170 = £22,230. The charge of £1,170 is added to administration expenses.
坏账准备是一种谨慎性措施。它将财务状况表上的应收账款减少至£23,400 – £1,170 = £22,230。费用£1,170计入管理费用。
If a specific bad debt existed, it would first be written off and the allowance calculated on the remaining balance. In our case, no specific bad debts are given, so the whole 5% applies directly.
若存在某个具体的坏账，则应先将其注销，再对剩余余额计算准备。在我们的案例中未给出具体坏账，因此5%直接应用。
7. Preparing the Income Statement Step by Step | 逐步编制利润表
We now assemble all the adjusted figures in a vertical income statement for the year ended 31 December 2023. You must follow the standard format required by Cambridge, using columns for details and totals.
现在我们将所有调整后的数字汇总到一份截至2023年12月31日止年度的垂直式利润表中。你必须遵循剑桥要求的标准格式，使用明细栏和合计栏。
| TechStore Ltd. Income Statement for the year ended 31 December 2023 | |
|---|---|
| Sales revenue | £198,000 |
| Cost of sales | (£110,700) |
| Gross profit | £87,300 |
| Less: Expenses | |
| Wages and salaries (£38,400 + £1,100) | £39,500 |
| Rent (£9,600 – £800) | £8,800 |
| Administration expenses | £7,200 |
| Depreciation – equipment | £9,000 |
| Allowance for doubtful debts | £1,170 |
| Interest on bank loan | £1,000 |
| Total expenses | (£66,670) |
| Profit for the year | £20,630 |
The income statement demonstrates how every note feeds into the final profit figure. If your total does not balance cross-wards, you have likely omitted an adjustment.
利润表展示了每条附注如何影响最终的利润数字。如果你的合计交叉不平衡，则很可能遗漏了某项调整。
8. Structuring the Statement of Financial Position | 构建财务状况表
The statement of financial position must reflect assets, liabilities and equity after all adjustments. We use the format that lists non-current assets, current assets, current liabilities, non-current liabilities and equity.
财务状况表必须反映所有调整后的资产、负债和权益。我们采用列出非流动资产、流动资产、流动负债、非流动负债和权益的格式。
| TechStore Ltd. Statement of Financial Position as at 31 December 2023 | |
|---|---|
| Non-current assets | |
| Equipment (net book value £45,000 – £21,000) | £24,000 |
| Current assets | |
| Inventory | £22,800 |
| Trade receivables (£23,400 – £1,170) | £22,230 |
| Prepaid rent | £800 |
| Cash at bank | £4,100 |
| Total current assets | £49,930 |
| Total assets | £73,930 |
| Current liabilities | |
| Trade payables | £14,300 |
| Accrued wages | £1,100 |
| Accrued interest | £1,000 |
| Total current liabilities | £16,400 |
| Net current assets | £33,530 |
| Non-current liabilities | |
| 5% Bank loan | £20,000 |
| Net assets | £37,530 |
| Equity | |
| Ordinary share capital | £30,000 |
| Retained earnings (£8,600 + £20,630 profit) | £7,530 |
| Total equity | £37,530 |
Notice that the total equity matches net assets, which proves the accounting equation holds. This check is the best way to confirm your numbers are correct.
请注意总权益等于净资产，这证明了会计等式的成立。这一核验是确认你数字正确的最佳方法。
9. Ratio Analysis and Interpretation | 比率分析与解读
Case studies frequently require you to compute and comment on ratios. Let us calculate three key ones using our adjusted statements.
案例题经常要求你计算并评论比率。让我们用调整后的报表计算三个关键比率。
Gross Profit Margin = (Gross Profit ÷ Sales Revenue) × 100 = (£87,300 ÷ £198,000) × 100 = 44.1%
毛利率 = (毛利 ÷ 销售收入) × 100 = (£87,300 ÷ £198,000) × 100 = 44.1%
A 44% margin suggests the business earns a healthy mark-up on its goods. It could be compared with the previous year or industry norms to assess competitiveness.
44%的利润率表明企业在其商品上获得了可观的加成。可与上年或行业标准比较来评估竞争力。
Net Profit Margin = (Profit for the Year ÷ Sales Revenue) × 100 = (£20,630 ÷ £198,000) × 100 = 10.4%
净利率 = (年利润 ÷ 销售收入) × 100 = (£20,630 ÷ £198,000) × 100 = 10.4%
The net margin shows how much profit is left after all expenses. A drop in this ratio over time might signal rising overheads or inefficiencies.
净利率显示扣除所有费用后还剩下多少利润。该比率随时间下降可能预示着管理费用上升或效率低下。
Current Ratio = Current Assets ÷ Current Liabilities = £49,930 ÷ £16,400 = 3.04:1
流动比率 = 流动资产 ÷ 流动负债 = £49,930 ÷ £16,400 = 3.04:1
A current ratio above 2 suggests strong liquidity, but it could also indicate inefficient use of cash or excess inventory. Always pair ratio figures with a short written interpretation.
流动比率高于2表明流动性强劲，但也可能意味着现金使用效率低下或存货过剩。务必为比率数字配上一段简短书面解读。
10. Common Pitfalls and Exam Tips | 常见陷阱与应试技巧
Many students lose marks by not adjusting both sides of a transaction. For example, recording the depreciation expense but forgetting to increase accumulated depreciation will break the balance.
许多学生因为未调整交易的两方面而失分。例如，记录了折旧费用却忘记增加累计折旧，将破坏平衡。
Another common error is misclassifying accrued interest. Interest on a long-term loan is a finance cost, not an administrative expense, and must appear separately in the income statement.
另一个常见错误是错误分类应计利息。长期借款的利息
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