Established model
Break-even and cost–volume–profit analysis
Established management accounting practice · 1930s
Also known as CVP analysis, Break-even analysis
How much has to be sold before the fixed costs are covered, and what each sale after that is worth.
Its place in the frameworkBusiness Core›Finance
What it does
Separating fixed from variable cost gives a contribution per unit and a volume at which the business stops losing money. The insight that survives beyond the arithmetic is about shape: a high-fixed-cost business is fragile below the line and very profitable above it, and knowing which kind you are running changes what risk you can take.
- Reach for it when
- Before committing to fixed costs, and when pricing something whose volume is uncertain.
- Where it stops
- It assumes costs stay neatly fixed or variable and that price holds as volume grows. Both assumptions fail exactly where the decision is interesting.
Walter Rautenstrauch, The Economics of Business Enterprise, Wiley, 1939; standard in management accounting since.
Why it sits at Finance
Where the money is, where it is going, and whether there will be enough. Finance is the object that constrains every other one, usually silently.
A model is only useful when you reach for it at the right moment. This one answers a question that arises here — so it is filed here, and nowhere else. These are the working areas it serves:
- BudgetingBudgeting practice, and the long-standing critique that annual budgets encode last year’s assumptions unless deliberately rebuilt.
- ForecastingRolling forecast practice, developed partly in response to the annual budget’s tendency to be obsolete on publication.
- Cash flowWorking capital management: the cash conversion cycle, and the standard finding that growth increases the gap between paying and being paid.
- Financial reportingStatutory reporting requirements alongside management accounting’s different purpose: one is for compliance, the other for decisions.
What it touches elsewhere
Nothing in a business is decided on its own. A conclusion reached with this model at Finance lands in these other cores, whether or not anyone follows it there.
- Goal CoreResourcing decisions are made here; unfunded goals are goals in name only.
- Business CoreMonetisation produces the revenue this object then has to manage.
- Data CoreFinancial measures are the most reported and the most often confused with performance.
- Time CoreRunway is a date, and it constrains every other date in the plan.
Filed at the same place
These answer questions that arise at Finance too. Where they disagree with this one, the disagreement is the useful part.
- DuPont analysisBreak return on equity into margin, asset turnover and leverage, so the number says where it came from.
- Unit economicsWhat it costs to win one customer, set against what that customer is worth over the whole relationship.
Elsewhere in Business Core
- Tuckman’s stages of group development
- Belbin Team Roles
- Herzberg’s two-factor theory
- Jobs to be done
- The Kano model
- The value proposition canvas
- The business model canvas
- The Van Westendorp price sensitivity meter
- Value-based pricing
- Core competence
- VRIO
- The resource-based view
- The theory of constraints
- Lean thinking
- Co-opetition and the value net
- Transaction cost economics
- Stakeholder theory
- The power–interest grid
- The Kraljic Matrix
- The bullwhip effect
- The SCOR Model
- On-time in-full
- Overall equipment effectiveness
- Value stream mapping
- The three lines model
- ISO 31000 risk management
- Maslow’s hierarchy of needs
- Kotter’s eight-step change model
- Situational leadership
- The Lean Startup
- Design thinking
- Porter’s value chain
- The McKinsey 7S framework
- The growth–share matrix
- Six Sigma and DMAIC
These are other people’s models, named here so you can go to the source and use them properly. The Omnigoal is not affiliated with their authors and is not endorsed by them; nothing of theirs is reproduced here — no canvas, no diagram, no wording. Each is described in our own words, with the originator credited, because the framework is a place to put thinking, not a replacement for the people who did it. Model names and trademarks belong to their respective owners and are used here only to refer to the work itself.
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