# Business Literacy > Explains business financial terms and frameworks for engineering managers — produces term definitions (ARR, COGS, CAC, LTV, gross margin, burn rate, EBITDA, AARRR), translation formulas for making engineering work visible in business language, and a three-layer framework for building business credibility. Use when the user says "business terms," "EBITDA," "burn rate," "CAC," "LTV," "gross margin," "ARR," "how do I speak to business people," "I don't understand finance," "make the case for engineering work," "connect engineering to business outcomes," "talk to the P&L owner," or "business impact." Do NOT use when the user wants to connect engineering metrics (DORA, velocity) to business metrics — use developer-productivity instead. - Skill: `manager-dot-dev/business-literacy` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add manager-dot-dev/business-literacy` - Raw SKILL.md: https://api.skillmd.com/api/skills/manager-dot-dev/business-literacy/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: manager-dot-dev (https://skillmd.com/u/manager-dot-dev) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/manager-dot-dev/business-literacy --- # Business Literacy ## Before Starting Check for EM context first. If `.agents/em-context.md` exists, read it. If `.agents/em-context.md` does not exist, ask for a minimal manager profile first and save it before giving detailed advice: role/title, team size, team mission or ownership area, and current challenge or priority. If a specific person is central to the conversation and `.agents/reports/[name].md` does not exist, ask for a minimal profile for that person first and save it before giving detailed advice: title/level, tenure, strengths, and current challenge or growth area. If the conversation reveals durable new context later, update `.agents/em-context.md` or `.agents/reports/[name].md` automatically. Save stable facts and patterns, not guesses, transient frustration, or unresolved interpretations. --- ## Response Style Keep the first answer concise and useful. Do not dump the whole framework unless the user asks for depth. Default to: - State the likely diagnosis or recommendation first - Ask at most 2-3 targeted questions only if the missing context changes the advice - Give the next concrete action and, when useful, exact wording the manager can use - Mention the relevant framework briefly, but do not explain every part of it - Offer a deeper version only after the direct answer --- ## How to Use This Skill - **Need to decode a business term you heard in a meeting** → The Terms That Come Up Most - **Want to make the case for engineering work in business language** → Using These in Practice - **Want to build credibility with business leaders or the P&L owner** → The 3 Layers of Business Impact --- ## Default Response Shape When translating business concepts for an EM, make the answer operational: 1. **Plain-English definition:** explain the term without finance theater. 2. **Why an EM should care:** connect it to roadmap, staffing, reliability, cost, or prioritization. 3. **Engineering translation:** show how engineering work can move or protect the metric. 4. **Example sentence:** give wording the EM can use with a business stakeholder. 5. **Caveat:** note where the metric can mislead or be gamed. For stakeholder-facing asks, end with a concise business-framed version of the engineering request. --- ## Why This Matters Engineers can succeed without understanding business language. Engineering managers cannot. If you want to have influence, convince stakeholders, and shape the roadmap — you need to speak the language leadership uses. Understanding these terms also makes you a better advocate for your team. When you can connect engineering decisions to business outcomes — margins, retention, CAC — you move from "we need this refactor" to "this reduces our hosting cost by 15% and improves our gross margin." --- ## The Terms That Come Up Most ### Money In **ARR (Annual Recurring Revenue)** — total yearly revenue from subscriptions. The core metric for SaaS companies. When leadership says "we're at $5M ARR," this is it. **MoM (Month-over-Month)** — growth rate from one month to the next. A 10% MoM growth rate is exceptional. **TAM (Total Addressable Market)** — the total revenue potential if you captured 100% of your target market. Used to justify investment size. ### Costs **COGS (Cost of Goods Sold)** — costs directly tied to delivering the product (hosting, infra, third-party APIs). For SaaS, engineering teams directly influence COGS. **Gross Margin** — `(Revenue - COGS) / Revenue`. For SaaS, 70–80% is healthy. Below 60% means your delivery costs are high relative to what customers pay. **This is where engineering decisions show up in financials.** Reducing third-party API dependency, optimizing infra costs, or improving efficiency all improve gross margin. **OpEx (Operating Expenses)** — ongoing costs not directly tied to production: salaries, rent, marketing. **CapEx (Capital Expenditure)** — large investments with long-term value. Building a new data center is CapEx; monthly AWS bill is OpEx. **Burn Rate** — how much cash the company spends per month. High burn + low revenue = limited runway. **Net Margin** — what's left after ALL costs. Most startups have negative net margin for years. **EBITDA** — Earnings Before Interest, Taxes, Depreciation, Amortization. A profitability measure that strips out financing. Matters more at late-stage. ### Customers **CAC (Customer Acquisition Cost)** — average cost to acquire a customer. If you spend $100k on marketing and get 100 customers, CAC = $1,000. **LTV (Lifetime Value)** — average revenue from a customer over their full relationship. LTV should be 3–5x CAC for a healthy business. If not, growth is expensive. **Churn** — percentage of customers lost per period. The silent killer. 5% monthly churn = ~46% of customers gone per year. **Retention** — the inverse of churn. Net Revenue Retention (NRR) > 100% means expansion from existing customers outweighs churn. **GRR (Gross Revenue Retention)** — what percentage of last year's revenue you kept, excluding expansion. **NPS (Net Promoter Score)** — "How likely are you to recommend us?" Scores 9–10 = promoters, 7–8 = passives, 0–6 = detractors. ### Business Health **Default Alive** — if you stop raising money, does current revenue growth make you profitable before cash runs out? If not, you're "default dead." **Moat** — what makes you hard to copy. Deep tech, network effects, proprietary data, brand. Engineering decisions (especially around data and platform) often build or erode moats. **AARRR (Pirate Metrics)** — Acquisition, Activation, Retention, Referral, Revenue. A framework for diagnosing where growth is leaking. If retention is 20%, pouring money into acquisition just fills a leaky bucket. Fix the leak first. --- ## Using These in Practice When proposing technical work, translate it: - Not: "we need to migrate off this legacy API" → Yes: "this API costs us $40k/year and is our top cause of outages; removing it improves gross margin and reduces customer churn" - Not: "we should invest in platform" → Yes: "right now each new feature takes 2 weeks to wire up; a platform investment gets that to 2 days, directly improving our CAC by reducing time-to-value" When reviewing the roadmap, ask the business question: which AARRR stage are we weakest at right now? Invest there first. --- ## The 3 Layers of Business Impact EMs who drive real business impact typically work across three layers, in increasing order of difficulty: **Layer 1 — Product:** Do you and your team understand how your features are used? Have a dashboard showing feature usage that everyone can see. Know the product's AARRR metrics. A feature that ships but nobody adopts has zero impact. **Layer 2 — Business Economics:** Can you connect your team's work to what the business cares about financially? Find the "GM" — the manager who owns P&L (profit and loss) for the business area your team serves. Have a conversation: what do they care about, and how does your team's work connect to it? Once you can answer that, start using business metrics in technical arguments. "This saves $125k/year" wins conversations that "better infrastructure" loses. **Layer 3 — Industry/Domain:** Do you understand the industry your company operates in well enough to speak credibly with domain experts? Most engineering managers are domain-agnostic, which makes non-technical leaders underestimate them. Three levels of domain knowledge: - **Level 1 (Passive):** Know the terminology. Industry-specific terms you hear repeatedly but don't fully understand undermine your credibility. Spend 10–15 minutes/week on industry content (articles, newsletters, an LLM tutor). Ask it to explain the domain as an instructor would. - **Level 2 (Sharing):** Share what you learn. Post a relevant article with your takeaway in a shared channel with peers and PMs. People who see you engaging with the domain start treating you as a peer. - **Level 3 (Insider):** Find one concrete way to experience the industry firsthand. Shadow a customer, use your own product as an actual user for a month, or (for the committed) get a domain certification. The gap between knowing the domain and experiencing it is the difference between being taken seriously and being tolerated. --- ## Dive Deeper If the user asks where a framework came from, wants to read the original article, or wants more context on any topic in this skill — read [`references/sources.md`](references/sources.md) for the full list of source articles (with links) and books. --- ## Related Skills - `working-with-pm` — PMs use this language constantly; understanding it makes you a real partner - `roadmap-planning` — Tech debt and platform work need business justification to get prioritized - `developer-productivity` — For connecting engineering metrics (DORA, velocity) to business outcomes - `influence` — Business fluency directly enables the 3rd level of positioning (being trusted)