📚 AS CIE Accounting: Case Study Practical Walkthrough | AS CIE 会计：案例分析实战演练
Case studies form the backbone of AS CIE Accounting, testing your ability to apply bookkeeping, adjustments, and financial statement preparation in a realistic context. This walkthrough takes you through a comprehensive scenario, from recording transactions to ratio analysis, helping you master the exam skills step by step.
案例分析是 AS CIE 会计考试的核心，考验你在真实情境中运用簿记、调整和财务报表编制的能力。本文将带你走过一个完整案例，从记录交易到比率分析，逐步掌握应试技巧。
1. Setting the Scene: Meet Greenfield Retail | 案例背景：遇见 Greenfield 零售店
Greenfield Retail is a sole trader business selling home goods. The owner, Ms Chen, has provided you with accounting records for the year ended 31 December 2023. You are required to prepare financial statements and analyse performance. Key unadjusted figures include: revenue $120,000, purchases $60,000, opening inventory $12,000, general expenses $15,000, equipment at cost $20,000, accumulated depreciation (before this year) $4,000, trade receivables $10,000, bank balance $8,000, and capital $30,000. All transactions are in US dollars and follow the accruals basis.
Greenfield 零售是一家销售家居用品的独资企业。店主陈女士向你提供了截至 2023 年 12 月 31 日的会计记录。你需要编制财务报表并分析业绩。关键的未调整数字为：销售收入 120,000 美元，采购 60,000 美元，期初存货 12,000 美元，一般费用 15,000 美元，设备原值 20,000 美元，累计折旧（本年度前）4,000 美元，应收账款 10,000 美元，银行存款 8,000 美元，资本 30,000 美元。所有交易以美元计量，遵循权责发生制。
At this stage, the trial balance does not yet reflect the closing inventory count, annual depreciation, a potential bad debt provision, nor any accruals or prepayments. These adjustments are essential to produce a faithful representation of profit and financial position.
现阶段，试算平衡表尚未反映期末存货盘点、年度折旧、潜在坏账准备以及应计或预付项目。为了如实反映利润和财务状况，这些调整必不可少。
2. Recording Credits and Debits: Double-Entry Essentials | 记录借贷：复式记账基础
Before adjustments, the trial balance agrees because every transaction throughout the year was recorded using double entry. For example, when Greenfield sold goods for $50,000 on credit, the accountant debited trade receivables and credited revenue. Similarly, a cash purchase of inventory for $5,000 was recorded as debit purchases and credit bank.
在调整之前，由于全年每笔交易均采用复式记账，试算平衡表是平衡的。例如，当 Greenfield 赊销 50,000 美元货物时，会计借记应收账款，贷记销售收入。同样，以现金 5,000 美元购入存货时，借记采购，贷记银行存款。
Understanding the logic of double entry helps you trace any errors in a case study. Always remember the accounting equation: Assets = Capital + Liabilities. Every debit must have a corresponding credit. In adjustments, you will often create new nominal ledger accounts such as ‘Accrued expenses’ or ‘Allowance for doubtful debts’.
理解复式记账的逻辑有助于你在案例分析中追踪错误。时刻牢记会计等式：资产 = 资本 + 负债。每笔借方必须有对应的贷方。在调整中，你通常会创建新的总分类账账户，如 “应计费用” 或 “可疑债务准备金”。
3. The Unadjusted Trial Balance | 未调整的试算平衡表
The unadjusted trial balance extracted on 31 December 2023 shows total debits of $143,000 and total credits of $143,000, confirming arithmetical accuracy of the ledgers. However, it is just a starting point. The balances presented include opening inventory, which must be eliminated from the income statement as it is replaced by closing inventory, and general expenses that still contain prepayments.
2023 年 12 月 31 日提取的未调整试算平衡表显示借方合计 143,000 美元，贷方合计 143,000 美元，确认了分类账的算术准确性。然而，这只是一个起点。所显示的余额包括期初存货（必须从损益表中消除，并被期末存货取代），以及仍含有预付项目的一般费用。
The trial balance is also used to identify missing ledger accounts. For instance, there is no ‘Accrued wages’ account yet, even though the last week’s wages of $500 are unpaid. This signals the need for an accrual adjustment. Similarly, the equipment accumulated depreciation of $4,000 needs an update for this year’s charge.
试算平衡表还可用来识别缺失的分类账账户。例如，尽管最后一周工资 500 美元尚未支付，但目前还没有 “应计工资” 账户。这提示需要计提应计调整。同样，设备累计折旧 4,000 美元需要更新本年度的折旧费用。
4. Year-End Adjustments Part 1: Inventory and Depreciation | 年终调整（上）：存货与折旧
Closing inventory is counted at $14,000. The adjustment removes the opening inventory of $12,000 from the income statement and introduces the closing inventory. In the ledger, you would transfer opening inventory to cost of sales, and record closing inventory as an asset. The double entry: debit Closing inventory (SOFP) $14,000, debit Cost of sales $12,000 (to clear opening inventory), credit Purchases and Opening inventory accordingly. Some syllabuses prefer a simpler approach: cost of sales = opening inventory + purchases – closing inventory. We will adopt that formula.
经盘点，期末存货为 14,000 美元。调整需从损益表中移出期初存货 12,000 美元，并引入期末存货。在分类账中，将期初存货转入销售成本，并将期末存货记为资产。复式分录为：借记期末存货（财务状况表）14,000 美元，借记销售成本 12,000 美元（转出期初存货），相应地贷记采购和期初存货。部分考纲倾向于更简便的方法：销售成本 = 期初存货 + 采购 – 期末存货。我们采用该公式。
For depreciation, the equipment has a cost of $20,000 and a straight-line rate of 10% per annum. The annual charge is $2,000. This increases the depreciation expense and accumulated depreciation. The double entry: debit Depreciation expense (income statement) $2,000, credit Accumulated depreciation (SOFP) $2,000. After this, accumulated depreciation becomes $6,000, and the net book value of equipment is $14,000.
折旧方面，设备原值 20,000 美元，采用直线法，年折旧率为 10%。年折旧费用为 2,000 美元。这将增加折旧费用和累计折旧。复式分录：借记折旧费用（损益表）2,000 美元，贷记累计折旧（财务状况表）2,000 美元。调整后，累计折旧变为 6,000 美元，设备账面净值 14,000 美元。
5. Year-End Adjustments Part 2: Accruals, Prepayments, and Bad Debts | 年终调整（下）：应计、预付与坏账
Greenfield had unpaid wages of $500 at the year end. An accrual of $500 is required: debit Wages expense $500, credit Accrued wages (current liability) $500. This ensures the income statement captures the full labour cost for the period, and the SOFP recognises the obligation.
年末，Greenfield 有未付工资 500 美元。需计提应计费用 500 美元：借记工资费用 500 美元，贷记应付工资（流动负债）500 美元。这确保损益表涵盖本期全部人工成本，财务状况表亦确认该项负债。
Prepaid insurance of $300 was discovered within the general expenses. The adjustment reduces the expense and creates a prepayment asset: debit Prepaid expenses $300, credit General expenses $300. The expense charged to the income statement becomes $15,000 – $300 = $14,700.
在一般费用中发现预付保险费 300 美元。调整将减少费用并产生一项预付资产：借记预付费用 300 美元，贷记一般费用 300 美元。损益表列支的费用变为 15,000 – 300 = 14,700 美元。
The owner estimates that 2% of trade receivables may be uncollectible. An allowance for doubtful debts of 2% x $10,000 = $200 is created. No specific debts have been written off yet. The double entry: debit Irrecoverable debts expense $200, credit Allowance for doubtful debts $200. The net trade receivables figure on the SOFP is $10,000 – $200 = $9,800.
店主估计应收账款中有 2% 可能无法收回。需计提可疑债务准备金：2% × 10,000 美元 = 200 美元。目前尚未实际注销任何坏账。复式分录：借记坏账费用 200 美元，贷记可疑债务准备金 200 美元。财务状况表上的应收账款净额为 10,000 – 200 = 9,800 美元。
6. Preparing the Income Statement | 编制损益表
With all adjustments made, we construct the income statement for the year ended 31 December 2023. Revenue is $120,000. Cost of sales = opening inventory $12,000 + purchases $60,000 – closing inventory $14,000 = $58,000. Gross profit = $120,000 – $58,000 = $62,000.
调整完毕后，我们编制截至 2023 年 12 月 31 日止的损益表。销售收入 120,000 美元。销售成本 = 期初存货 12,000 + 采购 60,000 – 期末存货 14,000 = 58,000 美元。毛利 = 120,000 – 58,000 = 62,000 美元。
Expenses include wages (original figure say $10,000 plus accrual $500) = $10,500, general expenses $14,700, depreciation $2,000, and irrecoverable debts expense $200. Total expenses = $10,500 + $14,700 + $2,000 + $200 = $27,400. Therefore, profit for the year = $62,000 – $27,400 = $34,600.
费用包括工资（原假设 10,000 美元 + 应计 500 美元）10,500 美元，一般费用 14,700 美元，折旧 2,000 美元，坏账费用 200 美元。费用合计 = 10,500 + 14,700 + 2,000 + 200 = 27,400 美元。因此，本年利润 = 62,000 – 27,400 = 34,600 美元。
In an exam, you must present the income statement with proper headings and subtotals. Use the format: first the heading, then revenue, cost of sales, gross profit, then list other income and expenses, and finally profit for the year. Avoid omitting any adjusted figure.
考试中，损益表必须使用正确的表头和分类。格式为：先写表头，然后是销售收入、销售成本、毛利，再列示其他收入和费用，最后是本年利润。切勿遗漏任何调整后的数字。
7. Statement of Financial Position | 财务状况表
The statement of financial position as at 31 December 2023 presents the assets, liabilities, and capital. Non-current assets: Equipment net book value $14,000 (cost $20,000 less accumulated depreciation $6,000). Current assets: Closing inventory $14,000, trade receivables net $9,800, prepaid expenses $300, bank $8,000. Total current assets = $32,100.
截至 2023 年 12 月 31 日的财务状况表反映企业的资产、负债和资本。非流动资产：设备账面净值 14,000 美元（原值 20,000 – 累计折旧 6,000）。流动资产：期末存货 14,000 美元，应收账款净额 9,800 美元，预付费用 300 美元，银行存款 8,000 美元。流动资产合计 32,100 美元。
Current liabilities include accrued wages $500 and any trade payables. Assume trade payables from the original trial balance were $5,000. Total current liabilities = $5,500. Therefore, net current assets = $32,100 – $5,500 = $26,600. Total net assets = non-current assets $14,000 + net current assets $26,600 = $40,600.
流动负债包括应计工资 500 美元和应付账款。假设原试算平衡表中应付账款为 5,000 美元。流动负债合计 5,500 美元。因此，流动资产净额 = 32,100 – 5,500 = 26,600 美元。净资产合计 = 非流动资产 14,000 + 流动资产净额 26,600 = 40,600 美元。
Financed by: Capital at start $30,000 plus profit for the year $34,600 less drawings (say $24,000) = $40,600. Drawings were not mentioned earlier but we introduce $24,000 to make the balance balance. In a real case, the trial balance would include drawings. Always check that the SOFP balances with the capital section.
资金来源为：期初资本 30,000 美元 + 本年利润 34,600 – 提款（假设 24,000 美元）= 40,600 美元。提款此前未提及，我们引入 24,000 美元以使报表平衡。在实际案例中，试算平衡表会包含提款。务必检查财务状况表与资本部分是否平衡。
8. Ratio Analysis: Unlocking Performance | 比率分析：解读业绩
Ratio analysis transforms the financial statements into meaningful indicators. We calculate profitability ratios: Gross profit margin = (62,000 / 120,000) x 100 = 51.7%. Net profit margin = (34,600 / 120,000) x 100 = 28.8%. These suggest Greenfield marks up its home goods significantly and controls expenses reasonably well.
比率分析将财务报表转化为有意义的指标。我们计算盈利比率：毛利率 = (62,000 / 120,000) × 100 = 51.7%；净利率 = (34,600 / 120,000) × 100 = 28.8%。这表明 Greenfield 对家居商品大幅加价，且费用控制得当。
Liquidity ratios: Current ratio = current assets 32,100 / current liabilities 5,500 = 5.84:1. Quick ratio = (current assets – inventory) / current liabilities = (32,100 – 14,000) / 5,500 = 18,100 / 5,500 = 3.29:1. Both ratios are comfortably above the textbook norms of 1.5:1 and 0.8:1, indicating strong short-term solvency but possibly inefficient use of cash.
流动性比率：流动比率 = 流动资产 32,100 / 流动负债 5,500 = 5.84:1。速动比率 = (流动资产 – 存货) / 流动负债 = (32,100 – 14,000) / 5,500 = 18,100 / 5,500 = 3.29:1。两个比率均远高于教科书中 1.5:1 和 0.8:1 的参考值，显示短期偿债能力极强，但也可能表明资金使用效率不高。
Efficiency: Trade receivables collection period = (9,800 / 120,000) x 365 = 29.8 days. This is reasonable for a retail business. For AS, always comment on what the ratios imply for the business and link to case details, such as a policy of strict credit control or high inventory turnover.
效率比率：应收账款回收期 = (9,800 / 120,000) × 365 = 29.8 天。对零售企业而言这是合理的。在 AS 考试中，务必就比率对企业的含义进行评论，并将其与案例细节相联系，例如严格的信贷控制政策或较高的存货周转率。
9. Tackling Common Errors in Case Studies | 攻克案例分析中的常见错误
Many students forget to adjust both the income statement and the SOFP for accruals and prepayments, leading to an imbalance. Always ensure that every adjustment is recorded with a debit and a credit. For example, an accrual increases both an expense and a liability.
许多学生忘记对应计和预付项目同时调整损益表和财务状况表，导致报表不平。务必确保每笔调整均有一笔借项和一笔贷项。例如，应计费用同时增加费用和负债。
Misclassifying inventory as an expense instead of an asset is another common slip. Closing inventory belongs in current assets on the SOFP, not in the income statement as an expense. The cost of sales formula handles this automatically if applied correctly.
将存货错误归类为费用而非资产是另一常见疏漏。期末存货应列示于财务状况表的流动资产项下，而非作为损益表中的费用。正确运用销售成本公式能自动处理这一问题。
When calculating ratios, double-check that you are using the right figures. Net profit must be after all adjustments. Liquidity ratios can appear unusually high if a business holds too much cash; always comment on both positive and negative aspects. AS examiners expect evaluative comments, not just computed values.
计算比率时，务必核对所使用的数字是否正确。净利润应包含所有调整后的结果。若企业持有过多现金，流动性比率可能显得异常高；始终要评论其积极与消极方面。AS 考官期望评估性评论，而不仅仅是计算值。
10. Conclusion: Mastering the Case Study Approach | 结语：掌握案例分析之道
Approaching AS CIE Accounting case studies requires a methodical sequence: extract the trial balance, identify necessary adjustments, compute income statement and SOFP, and then interpret through ratios. Each step relies on the integrity of the previous one, so careful ledger control is critical.
应对 AS CIE 会计案例分析需要有系统的步骤：提取试算平衡表，确定必要的调整，计算损益表和财务状况表，然后通过比率进行解读。每一步都依赖上一步的准确性，因此审慎的账务控制至关重要。
Practise with multiple scenarios to become comfortable switching between journals, ledgers, financial statements, and ratio analysis. Remember that the case study is not just about numbers but about telling the story of the business. The more you connect the data to the business context, the higher your marks in evaluation.
多做不同情境的练习，熟练地在日记账、分类账、财务报表和比率分析之间切换。请记住，案例分析不仅仅是数字，更是讲述企业故事。把数据与企业背景联系得越紧密，评价部分的得分就越高。
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