Imagine owning the whole home-goods store in part 1. Its income statement reports a profit of 30, but its operations produced only 11 in cash. After buying store fixtures for 60, its free cash flow is −49. Which number tells you what the business earned for you? Each answers a different question. The owner's task is to connect them before deciding how much cash can leave the business. 假设第一期里的整家家居用品店都归你所有。利润表显示赚了 30，经营活动实际只带来 11 的现金，购买店内设施又花了 60，自由现金流成了 −49。究竟哪个数字代表这门生意为你赚的钱？它们回答的是不同问题。作为所有者，需要先把这些数字接起来，再判断有多少钱可以离开企业。
One idea: Estimate cash after sustaining the business. Case · Apple FY2025 capital spending本期知识点：估计维持生意后能留下的现金。真实案例 · Apple 2025 财年资本开支
Begin with the owner's question先问所有者真正关心的问题
Accounting profit measures the period's result under accounting rules. Cash flow records cash movements. An owner must ask a further question: after meeting the costs of keeping customers, replacing worn equipment and financing the operating cycle, what earning power remains? This is why reading like a business owner involves more than finding a low price-to-earnings ratio. 会计利润按会计规则计算这一期的经营结果，现金流记录钱的实际进出。所有者还要往前问一步：留住客户、更新磨损的设备、维持从备货到收款的周转之后，这门生意还剩下多少赚钱能力？因此，以企业所有者的眼光读财报，需要做的远不止寻找一个低市盈率。
Accounting profit会计净利润
30
Revenue less recognized costs.收入减去确认的成本费用。
Operating cash flow经营活动现金流
11
Cash generated by this year's operations.今年经营实际带来的净现金。
After all capital spending扣除全部资本开支后
−49
11 less the store-fixture purchase of 60.11 再减去购买店内设施的 60。
The store was funded with 100 of shareholders' cash and 40 of debt. Its closing cash of 91 is therefore not a fourth measure of annual earnings: 140 of external funding plus 11 of operating cash, less 60 of store fixtures, equals 91. A bank balance can contain borrowed money as well as earned money. 这家店还收到股东出资 100、借款 40。所以期末现金 91 也不是另一种“今年赚了多少”：外部投入的 140，加上经营净流入 11，减去设施款 60，才得到 91。银行账户里的钱，既可能是赚来的，也可能是借来的。
Follow the missing 19 from profit to cash从利润到现金，追踪少掉的 19
The first-year store recognized sales of 100 but collected only 80. It bought inventory costing 50, paid suppliers 35 and used inventory costing 30 in the goods it sold. Those differences explain why revenue, expense and payment do not move together. The indirect cash-flow reconciliation adjusts profit for noncash charges and operating balances; the SEC's financial-statement guide explains this distinction. 这家店第一年确认销售收入 100，只收回 80；买入存货 50，只付给供应商 35，其中 30 的存货已经随销售转为成本。这些差额解释了为什么收入、费用与付款并不同步。现金流量表的间接法，就是从利润出发，对非现金项目和经营性余额的变化作调整；SEC 财报入门指南介绍了这种区别。
- 30Start with net income after interest and tax.从已经扣除利息与所得税的净利润开始。
- +6Add back depreciation: it reduced profit without a current operating cash payment.加回折旧：它减少利润，却不是当期经营付款。
- −20Subtract the increase in receivables: customers have not yet paid for these sales.扣除应收账款增加：这些销售尚未收到钱。
- −20Subtract the increase in inventory: 50 purchased less 30 consumed.扣除存货增加：购入 50，耗用 30，剩下 20。
- +15Add the increase in payables: suppliers have financed part of the purchases.加上应付账款增加：供应商暂时垫付了部分采购资金。
- =11Cash flow from operations, or CFO.得到经营活动现金流净额，简称 CFO。
Check it against actual payments: collections of 80, less suppliers' cash of 35, other operating payments of 20, interest of 4 and tax of 10, leave 11. Adding back depreciation does not make equipment free. Its purchase is recorded in investing cash flow; its eventual replacement still requires money. 再用实际收付款核对：收回货款 80，减去供应商付款 35、其他经营付款 20、利息 4、税款 10，仍然剩下 11。加回折旧，并不意味着设备免费：购置设备的付款列在投资活动，日后更换设备仍要花钱。
Working capital is cash committed to doing business营运资本，是为了做生意而占用的钱
For this retailer, define operating working capital as receivables plus inventory minus trade payables. Cash and interest-bearing debt are excluded from this narrow definition. The increase is 20 + 20 − 15 = 25. Profit plus depreciation gives 36; committing 25 to the operating cycle leaves 11. The business has earned a profit while part of its resources remain in customers' accounts and unsold goods. 对这家店，经营性营运资本取“应收账款＋存货−应付货款”，这个简化定义不包括现金和有息债务。本年增加了 20＋20−15＝25。净利润加回折旧得到 36，经营周转又占用 25，现金就只剩 11。企业确实有利润，但一部分资源仍停在客户欠款和未售出的货物里。
A low CFO-to-profit ratio is a reason to investigate, not an automatic fraud verdict. A new store needs an initial stock of inventory and customer credit. A mature retailer with stagnant sales and steadily rising overdue receivables presents a different problem. Compare several years, the same seasonal periods and the notes describing credit terms, overdue accounts, inventory provisions and supplier payments. 经营现金流与利润的比值偏低，是继续调查的线索，不能直接等同于造假。新店需要建立第一批库存，也可能要给客户账期；成熟零售商销售停滞、逾期应收却年年增长，则是另一种问题。应比较多个年度、相同季节，并核对附注中的赊销条件、逾期款、存货跌价准备和供应商付款情况。
Cash falls现金减少时
Ask whether more inventory supports confirmed demand, or whether goods are becoming harder to sell. The accounting movement is the same; its business meaning is not.查增加的库存是在支持确定的订单，还是货物越来越难卖。同样的会计变动，经营含义可能相反。
Cash rises现金增加时
Ask whether customers paid sooner, or whether the store delayed its suppliers. A one-off release of working capital cannot be repeated every year.查是客户付款变快了，还是企业拖延了供应商账款。一次性释放的营运资本，不能年年重复。
Read the cash-flow classification policy before comparing companies. Our examples put interest and tax in operating cash flow; that convention must not be silently imposed on a different reporting framework or reporting period. The IAS 7 overview describes cash-flow categories and the amendments associated with IFRS 18. Start from each company's actual reconciliation. 跨公司比较之前，先读现金流分类政策。本文把利息与税款放在经营活动，不能把这个约定悄悄套到不同准则或不同报告期上。IAS 7 官方概览说明了现金流类别及 IFRS 18 带来的相关修订。实际分析要从该公司的现金流勾稽表出发。
The next evidence must distinguish the stories.下一份证据，要能区分两种解释。
A · Normal growth absorbs cashA · 正常增长暂时占用现金
Customers are within agreed terms; stock is being prepared for demand that is supported by repeat purchases.顾客仍在约定账期内；为有复购支持的需求备货，暂时占用了现金。
Receivables collected near contractual dates; stock sold without unusual markdowns. Check returns and credit notes as well as collections.货款在约定日期附近到账；商品售出，无需异常打折。既查收款，也查退货与折让。
B · Sales are being sustained by concessionsB · 靠放宽条件维持销售
Longer credit or generous return rights support sales; inventory is accumulating faster than genuine demand.更长账期或宽松退货条件支撑了销售；库存积累快于真实需求。
Aging receivables, recurring term extensions, more returns or write-downs. Compare with seasonality and industry conditions.账龄拉长、反复延长账期、退货或减值增多。同时与季节性、行业变化对照。
In a filing, look for revenue-recognition and return policies, receivable allowances, inventory write-downs, management’s discussion of collection terms, and later-period results. An auditor’s opinion addresses financial reporting within its scope; it does not certify customer loyalty or the durability of a competitive advantage. If the public disclosures cannot distinguish A from B, the current conclusion is “not yet established.”在财报中，查收入确认与退货政策、应收款减值准备、存货跌价、管理层对收款条件的讨论，再看后续报告。审计意见在其范围内针对财务报告，并不为顾客忠诚或竞争优势的持久性背书。公开披露不足以区分 A、B 时，当前结论就是“尚未证实”。
What must be reinvested before the owner earns anything?所有者拿钱之前，生意必须留下多少？
In his 1986 Berkshire shareholder letter, accounting appendix, Buffett describes owner earnings using reported profit, selected noncash adjustments, and estimated annual reinvestment needed to sustain competitive position and unit volume, including necessary additional working capital. He stresses the uncertainty of that estimate. The useful habit is to examine the economics behind the accounting numbers. 巴菲特在伯克希尔 1986 年股东信的会计附录中，把所有者盈余与报告利润、适当的非现金调整，以及维持竞争地位和实物销量所需的年度再投入联系起来，后者也包括必要的新增营运资本。他明确承认这种估计的不确定性。值得学习的是检查会计数字背后的经济实质。
“(c) must be a guess - and one sometimes very difficult to make.”“（c）必须靠估计，而且有时非常难以估计。”
Here (c) is the spending needed to sustain the business, including necessary working capital. The point is to justify a range using operating evidence; calling it an estimate does not make an arbitrary number acceptable.这里的（c）是维持生意所需的投入，包括必要的营运资本。因此，计算时需要用经营证据支持估计区间；承认需要估计，并不意味着可以随意填数。
For a simple nonfinancial company, use four clearly labeled inputs: normalized after-tax profit
Consider a delivery van. Replacing it when it wears out preserves the delivery service; buying a second van for new customers expands it. In a factory the boundary is harder: a new machine may both replace an old one and increase output. A safety upgrade can be essential even if it is marketed as modernization. Read projects in terms of what happens to service, cost, capacity and competitiveness if they are not funded. 想一辆送货车就容易理解：旧车报废后买车替换，是保住配送能力；为新增客户再买一辆，是扩大经营。工厂里的边界会复杂一些：一台新机器可能同时替代旧设备并提高产量；一项被称为“现代化改造”的安全升级，也可能是继续营业所必需的。判断项目时，要问不花这笔钱，服务、成本、产能与竞争力会发生什么变化。
Depreciation is an accounting allocation, not a replacement quotation. Equipment ages, replacement prices and useful lives can differ from the assumptions behind that expense. Several years of capital spending, asset-age information, maintenance plans and management's project descriptions provide evidence. Without that evidence, keep a range or leave the estimate unresolved. The first-year equipment purchase of 60 does not reveal a recurring maintenance budget, and depreciation of 6 does not establish one. 折旧是会计分摊，不是设备更新报价。设备新旧程度、替换价格和实际寿命，都可能与折旧采用的假设不同。应从多年资本开支、资产年龄、维护计划和管理层的项目说明中寻找依据。没有依据，就保留区间，或者暂时不下判断。第一年买设备花的 60，不能直接告诉我们每年的维持预算；折旧 6 也不能替代这个判断。
Calculate a range for a mature business为成熟生意算一个有依据的区间
Now switch to a separate fictional mature company, not the first-year store. Assume a representative operating year: net income is 30, depreciation is 6, and maintaining the same unit volume requires 3 more in working capital as inventory replacement costs rise. Cash interest and tax are already included; there are no other noncash adjustments, leases or share-based compensation. CFO is therefore 33. 现在换到另一个虚构的成熟企业，并非把初创商店的第一年改写成稳定期。假设这是具有代表性的经营年度：净利润 30、折旧 6；由于补货成本上升，即使实物销量不变，也需要新增营运资本 3。现金利息与税款已经计入，没有其他非现金调整、租赁或股权激励。因此 CFO 为 33。
The company spent 18 on capital projects. Its fictional project records identify 7 as replacement work, 8 as a new production line, and 3 as a mixed-purpose upgrade. A review cannot determine how much of that final 3 is necessary to sustain existing operations. Treating none or all of it as sustaining expenditure produces an annual maintenance range of 7–10. Assume this is representative of a full replacement cycle, rather than an unusually light spending year. 这家企业资本开支合计 18。虚构项目记录显示：明确替换旧设备的部分为 7，新建产线为 8，兼顾原有业务和新增能力的改造为 3。审查后仍无法确定最后这 3 中有多少是维持原业务所必需的，就分别把它全部计入或全部排除，得到年度维持开支 7—10 的区间。这里还假设这些数字代表完整设备更新周期中的正常水平，并非恰逢一个少花钱的年份。
More reinvestment required需要留下更多再投入
23
CFO 33 − sustaining capex 10.经营现金 33 − 维持开支 10。
Less reinvestment required需要留下较少再投入
26
CFO 33 − sustaining capex 7.经营现金 33 − 维持开支 7。
The cash actually left after all projects is still 15. The higher owner-earnings estimate asks what earning power remains if optional expansion is separated from sustaining the existing business. It does not put the expansion money back in the bank. If those projects are contracted or growth is necessary to preserve competitiveness, their cash requirements cannot simply be ignored. 全部项目做完之后，今年实际剩下的现金仍然是 15。较高的所有者盈余估计，回答的是把可选择的扩张与维持原有生意分开后，企业具备多少赚钱能力；它不会把已经投出去的扩张款变回银行存款。如果项目已经签约，或者所谓“增长”其实是维持竞争力的必要条件，就不能把相应现金需求随手忽略。
This article defines free cash flow as CFO minus total cash capital expenditure. Companies can use different definitions. SEC guidance, question 102.07, notes that free cash flow is not uniformly defined and does not automatically represent cash available for discretionary use; obligations such as debt repayments may remain. 本文把自由现金流定义为 CFO 减去全部现金资本开支。公司对这个指标可能采用不同定义。SEC 非 GAAP 指标指引第 102.07 问指出，自由现金流没有统一定义，也不能自动等同于可以随意支配的现金，还可能有偿还本金等义务。
Earning power is not a dividend promise赚钱能力，不等于今年能分多少红
The owner's next check is the financing schedule. Suppose the mature company must repay 12 of principal this year and has no refinancing arranged. The simplified free cash flow of 15 would leave only 3 after that payment, before any required liquidity reserve. Principal repayment reduces cash without reducing this year's net income. A high owner-earnings estimate cannot pay a debt twice or eliminate a maturity mismatch. 下一步要查看债务到期安排。假设这家成熟企业今年必须偿还本金 12，而且尚未安排再融资，那么自由现金流 15 支付这笔款项后只剩 3，还没有考虑必要的现金储备。还本金会减少现金，却不减少当年净利润。所有者盈余估计再高，也不能让一笔现金付两次债，或抹掉期限错配。
Other adjustments require the same care. Share-based compensation may avoid a current cash wage payment while transferring part of the business to employees; an add-back alone says nothing about the existing shareholder's economic cost. An impairment can be noncash today yet reveal that an earlier investment failed. Repeated restructuring costs deserve scrutiny even when management labels each program exceptional. Check the share-count history, cash obligations and the explanation for every proposed adjustment. 其他调整也要这样审慎处理。股权激励可能节省当期现金工资，却把企业的一部分权益交给员工，仅仅“加回”不能说明原股东没有经济成本；减值可能今天不出现金，却揭示先前投资失败；重组费用如果反复发生，即使每次都被称为特殊项目，也需要认真核查。对每一笔拟议调整，都要追查股数变化、现金义务和调整理由。
Keep recurring business costs in the analysis, and treat gains and losses consistently. The SEC's non-GAAP guidance, questions 100.01–100.03, explains why removing necessary recurring cash expenses or adjusting losses without comparable gains can mislead. An owner-earnings worksheet should make judgment visible, not provide a mechanism for excluding every unpleasant number. 分析中要保留持续经营成本，对收益和损失使用一致口径。SEC 非 GAAP 指标指引第 100.01—100.03 问说明，剔除必要的经常性现金费用，或者只调整损失、不调整同类收益，可能误导读者。所有者盈余工作表应让判断过程可见，而不是成为删除所有难看数字的工具。
Two checks before trusting the result相信结果之前，做两个检查
Exercise 1. A reader takes the mature company's CFO of 33, subtracts sustaining capex of 7–10, and then subtracts the working-capital increase of 3 again. The result is 20–23. Where did the calculation go wrong? 练习 1。有位读者从成熟企业的 CFO 33 出发，扣除维持开支 7—10，再扣一次营运资本增加的 3，算出 20—23。错误在哪里？
Check the reconciliation核对勾稽过程
CFO was already 30 + 6 − 3 = 33. Subtracting that 3 a second time double-counts working capital. Start either from profit: 30 + 6 − 3 − (7–10), or from CFO: 33 − (7–10). Both produce 23–26. Write the starting definition beside every calculation.CFO 本来就是 30＋6−3＝33，再扣一次 3，会重复扣除营运资本。可以从利润出发：30＋6−3−（7—10）；也可以从 CFO 出发：33−（7—10）。两种路径都得到 23—26。每次计算，都应先写清起点包含了什么。
Exercise 2. Everything else in the mature-company example stays the same, but just before year-end it postpones 10 of supplier payments until January. Reported CFO rises from 33 to 43. Has sustainable owner earnings increased by 10? 练习 2。成熟企业算例的其他条件不变，但它在年末把 10 的供应商付款推迟到次年 1 月。报告 CFO 从 33 升至 43。可持续的所有者盈余是否也提高了 10？
Separate timing from earning power区分付款时点与赚钱能力
No. The extra 10 is a temporary increase in supplier financing. Removing that timing effect gives normalized CFO of 43 − 10 = 33, so the estimate remains 23–26. Actual year-end cash is higher, but the January obligation is higher too. If permanently improved contractual terms were instead supported by evidence, that would require a different analysis; the question specifies only a delay.没有。多出的 10 是供应商临时多垫的资金。消除这个时点效应，正常化 CFO 为 43−10＝33，估计仍是 23—26。年末实际现金确实增加了，但 1 月要付的款也增加了。如果有证据表明合同账期得到持续改善，需要另作分析；本题给出的条件只是延后付款。
Leave with a cash-earnings worksheet留下一张现金盈利工作表
For a real company, reproduce the reported figures before making adjustments. Record the financial year, currency, unit and accounting basis; then keep disclosed facts, arithmetic and estimates in separate columns. A compact worksheet can carry the entire reasoning: 面对真实公司，先复原报告数字，再作调整。记录财年、币种、单位与会计口径，把披露事实、算术结果和估计假设分列。一张简明工作表，就能承载完整的判断过程：
| Item项目 | Evidence to record要记下的依据 | Question it answers回答的问题 |
|---|---|---|
| Net income and CFO净利润与 CFO | Income statement and cash reconciliation利润表、现金流勾稽 | Where did profit become cash, or remain tied up?利润在哪里变成现金，又在哪里被占用？ |
| Working capital营运资本 | Receivables, inventory and payables notes over several years多年应收、存货、应付附注 | Is the cash movement sustainable or a timing effect?现金变化能持续，还是时点效应？ |
| Capital expenditure资本开支 | Cash paid, replacement cycle and project purposes实际付款、更新周期与项目用途 | What expenditure is necessary to preserve the business?哪些钱是保住生意必须花的？ |
| Owner-earnings range所有者盈余区间 | Explicit normalization and sustaining-investment assumptions明确的正常化与维持投入假设 | How much does the answer depend on judgment?结论在多大程度上依赖估计？ |
| Debt and commitments债务与承诺 | Maturities, contracted spending and liquidity needs到期表、已签约支出与流动性需求 | How much cash must stay, regardless of estimated earnings?不论盈利估计如何，哪些现金必须留下？ |
For the first-year store, the defensible answer is profit 30, CFO 11, free cash flow −49, and insufficient evidence for a recurring owner-earnings estimate. For the separate mature example, the assumptions support 23–26 of annual owner earnings, while cash after all capital projects is 15. The next question is what the company earns on money it keeps. That connects cash generation to return on invested capital and management's allocation decisions in part 3. 对第一年的商店，有依据的结论是：利润 30、CFO 11、自由现金流 −49，还没有足够信息估计持续的所有者盈余。对另一个成熟企业，给定假设支持年度所有者盈余 23—26，而全部资本项目做完后的现金为 15。接下来要问的是：企业把钱留下后，还能赚到多少？这就进入第三期的资本回报的来源。
Case · Why Apple’s free cash flow is not an owner-earnings estimate真实案例：Apple 自由现金流为何还不是所有者盈余
In Apple’s FY2025 cash-flow statement, printed p. 33, operating cash of 111,482 less equipment-related cash spending of 12,715 gives 98,767 (USD millions). This is a calculation from disclosed lines. The report does not split that spending into the maintenance amount our estimate requires.在 Apple 2025 财年现金流量表第 33 页，经营现金 111,482 减去购建固定资产支出 12,715，得到 98,767，单位均为百万美元。这是依据披露行项目完成的计算；年报并没有直接拆出我们需要的维持性支出。
A known calculation and an unresolved estimate已经算出的数，与尚待判断的数
98,76798,767
CFO less all cash purchases of property, plant and equipment.经营现金流减全部购建固定资产现金支出。
Not yet established尚未确定
Sustainable owner earnings after normalizing cash timing, replacement needs and dilution.调整收付时点、更新需求和稀释之后的可持续所有者盈余。
To continue, compare several years of spending, assets and management’s capacity plans. Ask which outlays keep today’s products and services competitive, and what evidence supports removing the rest from a sustaining estimate. An expense already deducted in profit must not be deducted again; nor should necessary research be casually added back because it sounds like growth.继续查多年支出、资产状况和管理层的产能安排。判断哪些投入是维持现有产品与服务竞争力所需，把其余部分排除在维持估计之外又有什么依据。已经扣进利润的费用不能再扣一遍；必要的研发也不能因为听起来像“增长”，就随意加回来。
Practice · Can we label 98,767 as cash safely available for dividends?练习：能把 98,767 直接标成可放心分红的现金吗？
No. It is a defined historical FCF subtotal, not a normalized earning-power estimate or a distribution authorization. Debt payments and required liquidity are a further check. State which estimate remains open instead of manufacturing precision.不能。它是按明确口径算出的历史自由现金流，不是正常化盈利能力，也不是分配额度。偿债与必要流动性还要另查。写清缺少哪项判断，不编造精确答案。
Continue with returns on the capital kept inside the business.接着读第三期：留下的资本究竟赚得怎样。
