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Unit 1 · Grades 9–12 · 2026–27 first edition

How real companies make money: a free unit for grades 9–12

How real companies make money is a free unit of four 50-minute lessons and an optional capstone. It's for high school personal finance, economics and business classes, grades 9–12.

For learning only. Cityfort is not a registered investment adviser or broker-dealer and does not recommend buying or selling any security. Prices shown are dated and may be out of date.

Students use real numbers from companies' Form 10-K annual reports to see how a business earns, spends and keeps money. No lesson asks students to pick, rank or value a stock.

A question to start with

Of every $100 that came in during FY2026, Nike kept $6.7 as net income, including a one-time tariff benefit. Costco kept $3.04 of every $100 that came in during its own FY2026.

Why are the two so different? Lesson 1 lets students work it out from each company's $100 receipt.

Nike's FY2026 ended May 31, 2026, and Costco's ended Aug 30, 2026. Sources: each company's FY2026 Form 10-K, via Nike's page and Costco's page.

What will students be able to do?

By the end of the unit, students can:

  • explain revenue, costs, taxes and net income with a real company's numbers (Lesson 1);
  • turn a company's yearly figures into "per $100" amounts (Lesson 1);
  • tell revenue, profit and cash from operations apart, and give one reason profit and cash differ (Lesson 2);
  • explain how two companies in one industry earn money differently, without ranking them (Lesson 3);
  • find facts in a real Form 10-K and cite the Item and page (Lesson 4);
  • research one company and explain how it makes money, with sources (capstone).

What's in each lesson?

LessonStudents will…TimeCompanies (fiscal year)Standards supported
1. Where did $100 go?Estimate each line of a company's $100 receipt, then compare with the real one.50 minNike (FY2026), Costco (FY2026), McDonald's (FY2025), Apple (FY2026)Investing 8-4; 7.RP.A.3, HSN.Q.A.1
2. Revenue, profit and cash are not the same thingFill a table for three real cases and explain the gap between profit and cash.50 minNetflix (FY2021 and FY2025), Chipotle (FY2025)Investing 12-2a, 12-5a (partial)
3. Same industry, different businessRead short 10-K excerpts and sort what is the same and what is different.50 minCoca-Cola and PepsiCo (FY2025); extension: McDonald's and Chipotle (FY2025); advanced: Costco and Walmart (FY2026)RH.11-12.7
4. 10-K scavenger huntSolve ten clues in teams, each answer with an Item and page.50 minNike's Form 10-K (FY2026); Costco's 10-K (FY2026, exit ticket)RH.11-12.1, RH.11-12.7; Investing 12-5a (partial)
5. Capstone: How ___ makes money (optional)Make a one-page explainer, poster, 3-slide talk or 60-second video about one company.2–3 periods plus homeworkStudents choose from a list of well-known companies with Cityfort pagesInvesting 8-4; RH.11-12.1, RH.11-12.7

"Investing" codes are from the National Standards for Personal Financial Education (2021). The other codes are Common Core, for states that use it. See how each one fits.

What order should I teach it in?

Teach the lessons in order if you can, because each one uses words from the one before.

The capstone fits after Lesson 4. It takes 2–3 class periods plus homework.

What should students know first?

Students should be comfortable with percentages. They don't need to know anything about stocks or finance.

If your course has an investing unit, this unit fits right after the lesson on what a share is.

How long does the unit take?

Lessons 1–4 take one 50-minute period each. Every lesson splits into two shorter blocks for 45-minute periods.

Which words does the unit teach?

  • Revenue: the money a company takes in from what it sells.
  • Cost: money a company spends to run its business.
  • Net income (profit): what's left after all costs and taxes.
  • Margin: how much of each $100 of revenue a company keeps.
  • Cash from operations: the cash a company's day-to-day business brought in during the year.
  • Form 10-K: the yearly report a US public company files with the SEC.
  • SEC: the Securities and Exchange Commission, the US agency that requires these reports.
  • Fiscal year: the 12 months a company uses for its yearly report. It doesn't always end in December.
  • Franchise: a deal where an independent owner runs a restaurant under a company's brand and pays it fees.
  • Segment: a part of a business that the company reports on separately.
  • Risk factor: something the company says could hurt its business. It's the company's own list, not a prediction.

Where do the numbers come from?

Every company number comes from an SEC filing (mostly a Form 10-K), through its published cityfort.co page. One Lesson 3 count comes from a Form 10-Q, a company's quarterly report, and the capstone's Starbucks card comes from its fiscal 2026 earnings release (Form 8-K). In Lesson 4 students read the 10-K itself. Every filing is on EDGAR, the SEC's free filing site.

CompanyFiscal year in the unitYear endedForm 10-K filedUsed inCityfort page
NikeFY2026May 31, 2026Jul 15, 2026Lessons 1 and 4Nike
CostcoFY2026Aug 30, 2026Oct 7, 2026Lesson 1; Lesson 3 (advanced); Lesson 4 (exit ticket)Costco
AppleFY2026Sep 26, 2026Nov 3, 2026Lesson 1Apple
McDonald'sFY2025Dec 31, 2025Feb 24, 2026Lesson 1; Lesson 3 (extension)McDonald's
ChipotleFY2025; Q3 FY2026 (Lesson 3 restaurant count)Dec 31, 2025; quarter ended Sep 30, 2026Feb 4, 2026; Form 10-Q filed Oct 29, 2026Lesson 2; Lesson 3 (extension)Chipotle
Coca-ColaFY2025Dec 31, 2025Feb 20, 2026Lesson 3Coca-Cola
PepsiCoFY2025Dec 27, 2025Feb 3, 2026Lesson 3PepsiCo
NetflixFY2025 and FY2021Dec 31, 2025 and Dec 31, 2021Jan 23, 2026 (FY2025); Jan 27, 2022 (FY2021)Lesson 2Netflix
WalmartFY2026Jan 31, 2026Mar 13, 2026Lesson 3 (advanced)Walmart

Fiscal years differ: Nike's ends in May and Walmart's in January. That's a good teaching point in itself; see Fiscal years that don't end in December.

When do the numbers change?

Each edition keeps its numbers fixed, so the worksheet, slides and answer key always match. Data checked Nov 7, 2026.

Older PDFs stay online. Each one says it's an older edition and links to the newest one.

What do I need to know before teaching it?

What if my class runs a stock-market simulation?

If your class runs a stock-market simulation, these lessons can come before it: they explain what a company does and how it reports results. They do not suggest which companies to choose, and Cityfort does not run, rank or judge simulation picks.

Optional further reading

These cityfort.co pages go deeper on the unit's companies. No lesson step needs them.

Company and comparison pages are part of the main site. They can show ads and a cookie choice, so the lessons give students everything they need on the student pages.

Edition and license

2026–27 first edition, v1.0. Data checked Nov 7, 2026. Lessons by Cityfort, shared under CC BY-NC 4.0.

Personal finance standards codes are from the National Standards for Personal Financial Education. Copyright © 2021, Council for Economic Education and Jump$tart Coalition for Personal Financial Literacy. All rights reserved.

Company names are trademarks of their owners; Cityfort is not affiliated with or endorsed by them.

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Disclaimer

For learning only. Cityfort is not a registered investment adviser or broker-dealer and does not recommend buying or selling any security. Prices shown are dated and may be out of date.

Investing in securities involves risk, including loss of capital. Before making any investment decision, do your own research and consider consulting a registered investment adviser or other qualified professional.

Cityfort, its owners and contributors may or may not hold securities of companies covered. Cityfort is not paid by any company it covers. Content is not an offer or solicitation to buy or sell any security, including in any initial public offering.

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Read the full disclaimer

Cityfort publishes general educational content that explains how listed companies work. Cityfort is not registered with the US Securities and Exchange Commission or any state securities regulator as an investment adviser, and is not a broker-dealer or a member of FINRA. Cityfort does not provide investment, tax or legal advice, recommendations, ratings, price targets or any opinion on whether to buy, sell or hold any security. Nothing on the site is tailored to any person's circumstances.

All information is taken from publicly available sources, mainly company filings with the SEC, which are listed on each page with dates. We work to keep it accurate and correct errors publicly, but we do not guarantee that it is complete, accurate or up to date. Any market price or price-based ratio shown is dated, may be out of date by the time you read it, and is included only to explain concepts.

Statements by company management, including forward-looking statements and guidance, are reported as the company's statements, with their date and source; they are not our forecasts. Adjusted (non-GAAP) figures are the company's own measures and are shown next to the official (GAAP) figures.