📚 Year 11 WJEC Accounting: Case Study Practice | 案例分析实战演练
Welcome to this dedicated case study walkthrough for Year 11 WJEC Accounting. You will work through a realistic scenario, applying your knowledge to adjust figures, prepare key financial statements and calculate vital ratios. This approach mirrors the structured, step-by-step thinking examiners expect when you face a case study question.
欢迎来到 Year 11 WJEC 会计的案例实战演练。你将处理一个贴近考试的模拟情景，运用所学知识调整数字、编制关键财务报表并计算重要比率。这种方法复现了阅卷官在你面对案例分析题时所期望的那种有条理、分步骤的思维过程。
1. Understanding the Case Study | 理解案例背景
ABC Traders is a small retail business. The bookkeeper has extracted a trial balance for the year ended 31 March 2025, but several adjustments are still outstanding. You must first read the scenario carefully to identify every piece of additional information. A common mistake is to start calculating before you truly understand what needs to change.
ABC Traders 是一家小型零售企业。簿记员已经提取了截至2025年3月31日止年度的试算平衡表，但仍有若干调整事项尚未处理。你必须先仔细阅读情境，找出每一条额外信息。一个常见的错误是，还没真正理解需要改变什么，就开始计算了。
The trial balance at 31 March 2025 includes: revenue £150,000, purchases £80,000, opening inventory £15,000, salaries £25,000, rent £12,000, general expenses £8,000, equipment at cost £60,000, accumulated depreciation (equipment) £10,000, trade receivables £16,000, trade payables £11,000, bank £5,000, cash £1,000 and capital £41,000. Additional notes: closing inventory is valued at £20,000; salaries of £2,000 for March remain unpaid; rent prepaid at the year‑end amounts to £1,500; depreciation on equipment is charged at 10% per annum using the straight‑line method; and a provision for doubtful debts of 5% of trade receivables is to be created.
2025年3月31日的试算平衡表包括：收入 £150,000，购货 £80,000，期初存货 £15,000，薪金 £25,000，租金 £12,000，杂项费用 £8,000，设备成本 £60,000，累计折旧（设备）£10,000，应收账款 £16,000，应付账款 £11,000，银行存款 £5,000，现金 £1,000 及资本 £41,000。附加说明：期末存货估值 £20,000；3月份薪金 £2,000 尚欠未付；年末预付租金 £1,500；设备采用直线法按每年 10% 计提折旧；并需对应收账款计提 5% 的呆账准备。
2. Adjusting Entries Required | 所需调整分录
Before any financial statement can be prepared, you must incorporate the adjustments. Closing inventory is brought into the books by removing opening inventory from purchases and inserting closing inventory. This affects the income statement directly and ensures only the cost of goods sold is shown.
在编制任何财务报表之前，你必须纳入这些调整。将期初存货从购货中剔除，同时记入期末存货，以此将期末存货引入账簿。这直接影响利润表，确保只显示已售商品成本。
Accrued salaries of £2,000 need to be added to the salaries expense and recorded as a current liability. Prepaid rent of £1,500 must be deducted from the rent expense and shown as a current asset. Without these two adjustments, expenses would be understated or overstated and the profit figure would be incorrect.
应付薪金 £2,000 需添加到薪金费用中，并记为一项流动负债。预付租金 £1,500 则必须从租金费用中扣除，并作为一项流动资产列示。若没有这两项调整，费用就会被少计或多计，利润数字也会失实。
Depreciation for the year is calculated as 10% of the equipment cost: 10% × £60,000 = £6,000. This increases the accumulated depreciation and is charged as an expense. The provision for doubtful debts is 5% × £16,000 = £800. The full £800 is created as an expense in the income statement, and the provision appears as a deduction from trade receivables in the statement of financial position.
当年折旧按设备成本的 10% 计算：10% × £60,000 = £6,000。这会增加累计折旧，并作为费用列支。呆账准备为 5% × £16,000 = £800。全部 £800 在利润表中确认为费用，而准备则在财务状况表中作为应收账款的抵减项列示。
3. Preparing the Income Statement | 编制利润表
The income statement for ABC Traders begins with revenue of £150,000. Cost of sales is computed as: opening inventory £15,000 plus purchases £80,000 minus closing inventory £20,000, giving £75,000. Gross profit therefore equals £150,000 – £75,000 = £75,000.
ABC Traders 的利润表从收入 £150,000 开始。已售商品成本计算为：期初存货 £15,000 + 购货 £80,000 – 期末存货 £20,000，求得 £75,000。因此，毛利 = £150,000 – £75,000 = £75,000。
Total expenses summed up: salaries (£25,000 + £2,000 accrued) £27,000, rent (£12,000 – £1,500 prepaid) £10,500, general expenses £8,000, depreciation £6,000 and provision for doubtful debts £800. So total expenses = £27,000 + £10,500 + £8,000 + £6,000 + £800 = £52,300. Profit for the year is then £75,000 – £52,300 = £22,700.
费用总额汇总：薪金（£25,000 + 应计 £2,000）£27,000，租金（£12,000 – 预付 £1,500）£10,500，杂项费用 £8,000，折旧 £6,000 以及呆账准备 £800。费用合计 = £27,000 + £10,500 + £8,000 + £6,000 + £800 = £52,300。当年利润则为 £75,000 – £52,300 = £22,700。
| Income Statement (extract) | £ |
|---|---|
| Revenue | 150,000 |
| Cost of sales | (75,000) |
| Gross profit | 75,000 |
| Total expenses | (52,300) |
| Profit for the year | 22,700 |
4. Calculating Gross Profit Margin | 计算毛利率
Gross Profit Margin = (Gross Profit / Revenue) × 100%
毛利率 = (毛利 / 收入) × 100%
Using the figures from the income statement: (£75,000 / £150,000) × 100% = 50.0%. This tells us that for every £1 of sales, the business retains £0.50 after covering the direct cost of the goods sold. A 50% margin is generally viewed as healthy in retail, but it must be compared with industry benchmarks.
利用利润表的数据：(£75,000 / £150,000) × 100% = 50.0%。这表明每销售 £1，企业在覆盖售出商品的直接成本后能保留 £0.50。50% 的毛利率在零售业中通常被视为良好，但必须与行业基准进行比较。
When a case study asks you to comment on the margin, remember to mention what could cause it to change. A lower margin might signal discounting, higher purchase costs or inventory theft. A rising margin could reflect better supplier deals or a shift to higher‑priced products. Use the case evidence to support your point.
当案例要求你对毛利率作出评述时，记得提及可能引起变化的原因。较低的毛利率可能意味着打折、购货成本上升或存货被盗。上升的毛利率则可能反映出更佳的供货协议或转向较高价格的产品。务必用案例中的证据来支持你的观点。
5. Preparing the Statement of Financial Position | 编制财务状况表
The statement of financial position as at 31 March 2025 must reflect all the adjustments. Non‑current assets show equipment at cost £60,000 minus accumulated depreciation of £16,000 (£10,000 existing + £6,000 for the year), giving a carrying amount of £44,000.
截至2025年3月31日的财务状况表必须反映所有调整。非流动资产列示设备成本 £60,000，减去累计折旧 £16,000（原有 £10,000 + 当年 £6,000），得出账面价值 £44,000。
Current assets include closing inventory £20,000, trade receivables £16,000 less provision for doubtful debts £800 = £15,200, prepaid rent £1,500, bank £5,000 and cash £1,000. That sums to £20,000 + £15,200 + £1,500 + £5,000 + £1,000 = £42,700.
流动资产包括期末存货 £20,000、应收账款 £16,000 减呆账准备 £800 = £15,200、预付租金 £1,500、银行存款 £5,000 及现金 £1,000。合计为 £20,000 + £15,200 + £1,500 + £5,000 + £1,000 = £42,700。
Equity and liabilities consist of capital £41,000 plus profit for the year £22,700, giving £63,700. Current liabilities: trade payables £11,000 and accrued salaries £2,000, total £13,000. Total equity and liabilities = £63,700 + £13,000 = £76,700. On the assets side, non‑current assets £44,000 plus current assets £42,700 also equal £76,700 — the statement balances perfectly.
权益与负债包括资本 £41,000 加当年利润 £22,700，得出 £63,700。流动负债：应付账款 £11,000 及应付薪金 £2,000，共计 £13,000。权益与负债总额 = £63,700 + £13,000 = £76,700。资产方，非流动资产 £44,000 加流动资产 £42,700 亦等于 £76,700——报表完美平衡。
6. Working Capital Analysis | 营运资金分析
Working capital is calculated as current assets minus current liabilities. Here, £42,700 – £13,000 = £29,700. Positive working capital indicates that the business can meet its short‑term obligations from its short‑term resources. A negative figure would raise concerns about liquidity.
营运资金按流动资产减流动负债计算。本例中，£42,700 – £13,000 = £29,700。正的营运资金表明企业能以短期资源偿付其短期债务。负数则会引起对流动性的担忧。
In a WJEC case study, you should not just calculate the number; you must interpret it. For ABC Traders, £29,700 of working capital looks comfortable, but you might point out that much of it is tied up in inventory. If the inventory is slow‑moving, the true liquidity position may be weaker than the headline figure suggests.
在 WJEC 的案例中，你不应只计算数字，还必须加以解读。对 ABC Traders 而言，£29,700 的营运资金看起来相当充裕，但你或许会指出，其中很大一部分被存货占用。如果存货周转缓慢，真实的流动性状况可能比表面数字所显示的更加脆弱。
7. Current Ratio and Acid Test Ratio | 流动比率与速动比率
Current Ratio = Current Assets / Current Liabilities
流动比率 = 流动资产 / 流动负债
For ABC Traders: £42,700 / £13,000 = 3.28:1. This is well above the typical benchmark of 2:1, suggesting a strong ability to pay short‑term debts. However, an excessively high current ratio could also indicate inefficient use of resources, such as too much cash sitting idle.
以 ABC Traders 为例：£42,700 / £13,000 = 3.28∶1。这远高于常见的 2∶1 参考标准，表明其偿还短期债务的能力很强。然而，流动比率过高也可能意味着资源利用效率低下，比如现金闲置过多。
Acid Test Ratio = (Current Assets – Inventory) / Current Liabilities
速动比率 = (流动资产 – 存货) / 流动负债
Excluding inventory, (£42,700 – £20,000) / £13,000 = £22,700 / £13,000 = 1.75:1. This is above the 1:1 benchmark, so even without selling any inventory, the business can cover its immediate liabilities. This ratio is often more revealing for a retail case study because inventory can take time to convert into cash.
剔除存货后，(£42,700 – £20,000) / £13,000 = £22,700 / £13,000 = 1.75∶1。该结果高于 1∶1 的基准，因此，即使不售出任何存货，企业仍能覆盖其即期负债。对零售案例分析而言，这一比率往往更能说明问题，因为存货变现需要时间。
8. Evaluating Business Performance | 评估企业绩效
A WJEC case study expects you to draw evidence‑based conclusions. ABC Traders generated a profit of £22,700, giving a return on capital employed (using opening capital) of (£22,700 / £41,000) × 100% = 55.4%. This is a very high return, suggesting the business is using its owners’ funds effectively. You should link this to the high gross margin and controlled expenses.
WJEC 的案例分析期望你得出基于证据的结论。ABC Traders 产生了 £22,700 的利润，以开业的资本计算，资本回报率为 (£22,700 / £41,000) × 100% = 55.4%。这是一个非常高的回报率，表明企业有效利用了所有者资金。你应当将此与高毛利率和得到控制的费用联系起来。
However, the case lacks comparative data. Without prior‑year figures or industry averages, you must be cautious. For example, is the 50% margin sustainable? Are all expenses genuinely necessary? A strong evaluation acknowledges both strengths and limitations of the information provided. You might also recommend that the owner monitor debtor days closely, since trade receivables represent a significant asset.
然而，该案例缺乏比较数据。在没有前一年数字或行业均值的情况下，你须保持谨慎。例如，50% 的毛利率可持续吗？所有费用是否确实必要？一份有力的评估应同时承认所提供信息的优势与局限。你也可能建议业主密切监控应收账款周转天数，因为应收账款是一项重要资产。
9. Common Mistakes to Avoid | 常见错误避免
One frequent error is forgetting to deduct the provision for doubtful debts from trade receivables in the statement of financial position, or simply adding the provision as a separate liability. The provision always reduces the receivables figure shown on the face of the statement. Another mistake is double‑counting closing inventory — it appears only once, as a current asset.
一个常见的错误是，在财务状况表中忘记将呆账准备从应收账款中扣除，或直接将准备作为一项单独的负债列示。准备总是要调减报表上列示的应收账款数字。另一个错误是重复计算期末存货——它仅作为一项流动资产出现一次。
Students often mix up accruals and prepayments. Remember: an accrued expense increases the expense and creates a current liability; a prepaid expense decreases the expense and creates a current asset. Under the WJEC format, you should clearly label these items in the appropriate section of the statement of financial position.
学生经常混淆应计与预付项目。牢记：应计费用会增加费用并形成一项流动负债；预付费用则会减少费用并形成一项流动资产。按照 WJEC 的格式，你应在财务状况表的适当部分清晰地标注这些项目。
10. Exam Tips for Case Studies | 案例分析考试技巧
Before you write any number, annotate the additional information on the trial balance. Underline key phrases such as ‘closing inventory’, ‘depreciation at 10%’ or ‘provision of 5%’. This helps you see exactly which accounts are affected. Then decide the sequence: adjustments first, income statement next, and finally the statement of financial position. The profit you calculate must be carried into capital for the balance sheet to balance.
在你写下任何数字之前，先在试算平衡表上批注附加信息。划出诸如’期末存货’、’按10%折旧’或’5%准备’等关键用语。这有助于你确切地看出哪些账户会受到影响。然后决定顺序：先做调整，接着编制利润表，最后是财务状况表。你计算出的利润必须结转至资本，资产负债表才能平衡。
When you are asked to evaluate performance, always structure your answer using a ‘Point, Evidence, Explain’ approach. State the finding (e.g. ‘the gross margin is high’), quote the calculated figure as evidence, and explain what that means for the business. This is the fastest way to earn full marks on evaluation questions in WJEC Accounting.
当要求你评估绩效时，始终采用’观点、证据、解释’的三段式作答结构。陈述发现（例如’毛利率较高’），引用计算得出的数字作为证据，并解释这对企业意味着什么。这是在 WJEC 会计的评估题中快速获得满分的最佳途径。
Lastly, manage your time. A full case study may carry 20-25 marks, so allocate about 25-30 minutes. Do not spend too long on the trial balance adjustments; if you are stuck, move on to the parts you can complete, such as ratio commentaries, and then return to the statements. Present all table work neatly because marks are awarded for correct format.
最后，合理分配时间。一道完整的案例分析题可能值 20–25 分，因此留出大约 25–30 分钟。不要在试算平衡表调整上花费过长时间；如果卡住了，就转做你能完成的部分，比如比率评述，然后再回头填报表。所有表格工作务必书写整洁，因为格式正确也有分。
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