A-Level OCR Accounting: Formula & Theorem Quick Reference Handbook | A-Level OCR 会计:公式定理速查手册

📚 A-Level OCR Accounting: Formula & Theorem Quick Reference Handbook | A-Level OCR 会计:公式定理速查手册

This handbook brings together the most important formulas, ratios and accounting theorems you need to master for the OCR A-Level Accounting examination. Each entry is presented with a clear formula or definition, followed by a brief explanation of its purpose and calculation. Use this guide to reinforce your understanding of financial accounting, management accounting, costing, budgeting and investment appraisal.

本手册汇集了OCR A-Level会计考试必须掌握的核心公式、比率及会计定理。每个条目均给出清晰的公式或定义,并说明其用途与计算方法。通过本手册,你可以巩固对财务会计、管理会计、成本核算、预算及投资评估的理解。


1. Accounting Equation and Core Principles | 会计等式与核心原则

Assets = Liabilities + Equity

资产 = 负债 + 所有者权益。这一基本等式必须始终成立,反映了企业资源和所有权的来源。

Assets = Liabilities + Equity + (Income – Expenses)

扩展等式:资产 = 负债 + 权益 +(收入 – 费用)。该形式将利润纳入权益,体现了期间经营成果对财务状况的影响。

For every debit entry there must be a corresponding credit entry of equal amount.

每一笔借方记录,必须有一笔等额的贷方记录与之对应。这就是复式记账的核心原则,确保会计等式的恒等。

Accruals concept: Revenue and expenses are recognised when earned or incurred, not when cash is received or paid.

应计制(权责发生制):收入和费用在权利产生或责任发生期间确认,而非在现金收付时确认。这保证了利润表反映当期的实际业绩。

Going concern concept: Financial statements are prepared on the assumption that the business will continue operating for the foreseeable future.

持续经营假设:编制财务报表时假设企业将在可预见的未来持续经营,资产按账面价值而非清算价值计量。

Prudence concept: Assets and income should not be overstated, and liabilities and expenses should not be understated.

审慎性概念:资产和收入不应被高估,负债和费用不应被低估。在不确定时应保持谨慎,计提准备或采用成本与可变现净值孰低法。


2. Profitability Ratios | 盈利能力比率

Gross Profit Margin = (Gross Profit ÷ Revenue) × 100%

毛利率 =(毛利 ÷ 收入)× 100%。该比率显示每一元销售收入在扣除销售成本后剩余的部分,可用于衡量定价策略与采购效率。

Net Profit Margin = (Net Profit before tax or after tax ÷ Revenue) × 100%

净利率 =(税前或税后净利润 ÷ 收入)× 100%。它反映所有费用扣除后,销售收入最终转化为净利润的比例,是衡量整体盈利能力的关键指标。

Return on Capital Employed (ROCE) = (Operating Profit ÷ Capital Employed) × 100%

运用资本回报率 (ROCE) =(营业利润 ÷ 运用资本)× 100%。运用资本通常为权益加长期负债,或总资产减流动负债。该比率衡量企业运用长期资金产生利润的效率。

Return on Equity (ROE) = (Profit after Tax ÷ Total Equity) × 100%

净资产收益率 (ROE) =(税后净利润 ÷ 所有者权益总额)× 100%。反映股东投入资本的回报水平,是投资者十分关注的指标。

Operating Profit Margin = (Operating Profit ÷ Revenue) × 100%

营业利润率 =(营业利润 ÷ 收入)× 100%。揭示企业在扣除营业费用后的盈利能力,是分析核心业务盈利的重要工具。


3. Liquidity and Efficiency Ratios | 流动性与效率比率

Current Ratio = Current Assets ÷ Current Liabilities

流动比率 = 流动资产 ÷ 流动负债。衡量企业短期偿债能力。一般认为理想值为2∶1,但行业差异较大。

Quick Ratio (Acid Test Ratio) = (Current Assets – Inventories) ÷ Current Liabilities

速动比率(酸性测试比率)=(流动资产 – 存货)÷ 流动负债。剔除变现能力较差的存货,更严格地评估短期偿债能力,理想值约为1∶1。

Inventory Turnover (times) = Cost of Sales ÷ Average Inventory

存货周转率(次)= 销售成本 ÷ 平均存货。表示一定时期内存货被售出的次数。周转率高通常意味着存货管理有效。

Trade Receivable Days = (Trade Receivables ÷ Credit Sales) × 365

应收账款周转天数 =(应收账款 ÷ 赊销收入)× 365。反映企业从赊销到收回现金所需的平均天数,天数越短收款能力越强。

Trade Payable Days = (Trade Payables ÷ Credit Purchases or Cost of Sales) × 365

应付账款周转天数 =(应付账款 ÷ 赊购金额或销售成本)× 365。衡量企业占用供应商资金的平均天数,需与信用条件对比评估。

Asset Turnover = Revenue ÷ Total Assets (or Capital Employed)

资产周转率 = 收入 ÷ 总资产(或运用资本)。表明每单位资产创造收入的能力,是资产使用效率的指标。


4. Gearing and Investor Ratios | 杠杆与投资者比率

Gearing Ratio = (Long-term Debt ÷ (Long-term Debt + Equity)) × 100%

杠杆比率(资产负债率)=(长期负债 ÷(长期负债 + 权益))× 100%。比例越高,企业财务风险越大,但潜在收益也可能更高。

Interest Cover = Operating Profit ÷ Finance Costs

利息保障倍数 = 营业利润 ÷ 融资成本(利息费用)。衡量营业利润对利息支出的覆盖程度,倍数越高支付利息越安全。

Earnings per Share (EPS) = (Profit after Tax – Preference Dividends) ÷ Weighted Average Number of Ordinary Shares

每股收益 (EPS) =(税后净利润 – 优先股股利)÷ 加权平均普通股股数。反映普通股东每股享有的利润,是上市公司的核心盈利指标。

Price/Earnings Ratio (P/E) = Market Price per Share ÷ Earnings per Share

市盈率 (P/E) = 每股市价 ÷ 每股收益。表示投资者为获得每一元利润所愿支付的价格,市盈率越高通常代表成长预期越强。

Dividend Yield = (Dividend per Share ÷ Market Price per Share) × 100%

股息率 =(每股股利 ÷ 每股市价)× 100%。反映股东凭借股利获得的现金回报率,是收入型投资者关注的重点。

Dividend Cover = Earnings per Share ÷ Dividend per Share

股息保障倍数 = 每股收益 ÷ 每股股利。衡量利润覆盖股利的倍数,倍数越高,未来维持或提高股息的可能性越大。


5. Cost-Volume-Profit and Break-Even | 本量利与盈亏平衡分析

Contribution per Unit = Selling Price per Unit – Variable Cost per Unit

单位贡献毛益 = 单位售价 – 单位变动成本。贡献毛益用于先弥补固定成本,超出部分即为利润。

Break-Even Point (units) = Total Fixed Costs ÷ Contribution per Unit

盈亏平衡点(销售量)= 固定成本总额 ÷ 单位贡献毛益。在该销售量下,企业既不盈利也不亏损。

Break-Even Point (sales value) = Total Fixed Costs ÷ Contribution Margin Ratio

盈亏平衡点(销售额)= 固定成本总额 ÷ 贡献毛益率。贡献毛益率 = 贡献毛益总额 ÷ 销售收入。

Margin of Safety = Actual Sales Volume – Break-Even Sales Volume

安全边际 = 实际销售量 – 盈亏平衡销售量。表示销售量可下降的额度而不至于亏损,也可用百分比表示。

Target Profit (units) = (Total Fixed Costs + Target Profit) ÷ Contribution per Unit

目标利润销售量 =(固定成本总额 + 目标利润)÷ 单位贡献毛益。用于确定实现特定利润所需的最低销售量。

Contribution Margin Ratio = (Contribution per Unit ÷ Selling Price per Unit) × 100%

贡献毛益率 =(单位贡献毛益 ÷ 单位售价)× 100%。反映每元销售收入中可用于覆盖固定成本和产生利润的比例。


6. Investment Appraisal Methods | 投资评估方法

Accounting Rate of Return (ARR) = (Average Annual Accounting Profit ÷ Average Investment) × 100%

会计收益率 (ARR) =(平均年度会计利润 ÷ 平均投资额)× 100%。平均投资额通常为期初投资与残值的平均数。ARR以财务报告利润为基础,便于理解但忽略货币时间价值。

Payback Period: The time required for cumulative cash inflows to equal the initial investment.

回收期:累计现金流入等于初始投资额所需的时间。计算方法简单,能衡量项目流动性风险,但不考虑回收期后的现金流。

Net Present Value (NPV) = Σ (Cash Flowₜ × (1 + r)⁻ᵗ) – Initial Investment

净现值 (NPV) = Σ(各期现金流ₜ × (1 + r)⁻ᵗ)– 初始投资。其中r为贴现率,t为时期。NPV大于零表示项目增加企业价值。

Internal Rate of Return (IRR): The discount rate at which NPV equals zero. It is found by interpolation or financial calculator.

内含报酬率 (IRR):使净现值为零的贴现率。通常通过插值法或金融计算器求解。若IRR高于资本成本,项目可行。

Profitability Index (PI) = Present Value of Future Cash Flows ÷ Initial Investment

获利指数 (PI) = 未来现金流入现值 ÷ 初始投资额。PI大于1表示项目回收超过投资,可用于资本约束下的项目排序。


7. Variance Analysis | 差异分析

Material Price Variance = (Standard Price – Actual Price) × Actual Quantity Purchased

材料价格差异 =(标准价格 – 实际价格)× 实际采购数量。正差异为有利差异,表明采购成本低于预算。

Material Usage Variance = (Standard Quantity for Actual Output – Actual Quantity Used) × Standard Price

材料用量差异 =(实际产量下的标准用量 – 实际用量)× 标准价格。正差异表示材料使用效率高于标准。

Labour Rate Variance = (Standard Rate per Hour – Actual Rate) × Actual Hours Worked

人工工资率差异 =(每小时标准工资率 – 实际工资率)× 实际工时。核算因工资率变动产生的差异。

Labour Efficiency Variance = (Standard Hours for Actual Output – Actual Hours) × Standard Rate

人工效率差异 =(实际产量下的标准工时 – 实际工时)× 标准工资率。反映劳动生产率的高低。

Variable Overhead Expenditure Variance = (Standard Variable Overhead Rate – Actual Rate) × Actual Hours

变动制造费用支出差异 =(标准变动制造费用率 – 实际费率)× 实际工时。衡量变动制造费用单位耗用成本的差异。

Variable Overhead Efficiency Variance = (Standard Hours – Actual Hours) × Standard Variable Overhead Rate

变动制造费用效率差异 =(标准工时 – 实际工时)× 标准变动制造费用率。与人工效率差异类似,基于工时效率评估。

Fixed Overhead Expenditure Variance = Budgeted Fixed Overhead – Actual Fixed Overhead

固定制造费用支出差异 = 预算固定制造费用 – 实际固定制造费用。反映固定费用总额上的超支或节约。

Sales Price Variance = (Actual Selling Price – Standard Selling Price) × Actual Quantity Sold

销售价格差异 =(实际售价 – 标准售价)× 实际销售量。衡量价格设定对销售收入的影响。

Sales Volume Profit Variance = (Actual Quantity Sold – Budgeted Quantity) × Standard Profit per Unit

销售数量利润差异 =(实际销售量 – 预算销售量)× 单位标准利润。说明销售量变化对利润的贡献。


8. Budgeting and Standard Costing | 预算与标准成本计算

Production Budget (units) = Budgeted Sales Units + Desired Closing Inventory – Opening Inventory

生产预算(单位)= 预算销售数量 + 目标期末存货 – 期初存货。确保生产计划满足销售与存货要求。

Materials Purchase Budget = (Units to be Produced × Material per Unit) + Desired Closing Material Inventory – Opening Material Inventory

直接材料采购预算 =(计划生产量 × 单位材料用量)+ 目标期末材料存货 – 期初材料存货。量化采购需求。

Cash Budget: Opening Cash Balance + Total Cash Receipts – Total Cash Payments = Closing Cash Balance

现金预算:期初现金余额 + 现金收入总额 – 现金支出总额 = 期末现金余额。用于预测流动性状况。

Standard Cost Card: Standard Cost per Unit = Standard Quantity × Standard Price per Unit for each cost element (materials, labour, overheads).

标准成本卡:每单位标准成本 = 各成本要素的标准用量 × 标准价格(材料、人工、制造费用)。为标准成本控制和差异分析提供基准。

Flexible Budget: Adjusted for actual level of activity, allowing variances to be computed on a like-for-like basis.

弹性预算:根据实际业务量调整后的预算,使得差异可以在相同作业水平上比较,增强差异分析的有用性。


9. Depreciation and Bad Debts | 折旧与坏账

Straight-Line Depreciation per Year = (Cost – Residual Value) ÷ Useful Life

直线法年折旧额 =(成本 – 残值)÷ 预计使用年限。每年计提等额折旧,简单且广泛使用。

Reducing Balance Depreciation Rate = 1 – ⁿ√(Residual Value ÷ Cost), where n is the number of years. Annual depreciation = Net Book Value × Depreciation Rate.

余额递减法折旧率 = 1 – ⁿ√(残值 ÷ 成本),n为使用年限。年折旧额 = 账面净值 × 折旧率。前期折旧费较高,更符合某些资产的实际使用状况。

Provision for Depreciation: Accumulated depreciation is shown as a credit balance, deducted from the asset’s cost in the statement of financial position.

累计折旧准备:累计折旧以贷方余额列示,在财务状况表中从相关资产成本中扣除,得出账面净值。

Irrecoverable Debts (Bad Debts) Write-off: Debit Bad Debts Expense, Credit Trade Receivables. When a specific customer balance is deemed uncollectible.

坏账注销:借记坏账费用,贷记应收账款。当特定客户款项确定无法收回时进行冲销。

Allowance for Doubtful Debts: An estimate of receivables that may not be collected. Increase in allowance is expensed; decrease is credited to income.

坏账准备:对应收款项中可能收不回的金额进行估计。准备金的增加计入费用,减少则冲减费用,以遵循审慎性原则。


10. Working Capital and Cash Management | 营运资金与现金管理

Working Capital = Current Assets – Current Liabilities

营运资金 = 流动资产 – 流动负债。衡量企业日常经营中的短期流动性缓冲。

Operating Cash Cycle = Inventory Days + Receivable Days – Payable Days

现金周转期 = 存货周转天数 + 应收账款周转天数 – 应付账款周转天数。周期越短,资金使用效率越高。

Cash Conversion Ratio = Operating Cash Flow ÷ Operating Profit

现金转换比率 = 经营活动现金流量 ÷ 营业利润。反映利润转化为实际现金的程度,帮助评估盈利质量。

Quick Guide to Reducing Cash Cycle: Reduce inventory levels, tighten credit terms, and negotiate longer payment terms with suppliers without damaging relationships.

缩短现金周期的要点:降低存货水平、收紧信用政策,并在不损害关系的前提下与供应商协商延长付款期。

Liquidity Management: Maintaining adequate working capital ensures the business can meet short-term obligations and avoid insolvency.

流动性管理:维持充足的营运资金可确保企业履行短期义务并避免无力偿付的风险。

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