How the Business Makes Money

Revenue is visible. The drivers behind profit — volume, price, mix, cost and capacity — usually are not.

Start
Manage
Fix
Finance
Strategy
~5 min · Calculation

The business problem

Most founders know their revenue and roughly what is left at the end of the year. Few can say which lever moves profit most: a 5% price change, a better product mix, fewer returns, or more output from the same people. Decisions get made on instinct, and effort goes to the levers that feel urgent rather than the ones that matter.

Why it matters

When you know how profit is built, you can see the consequence of a decision before you make it: a discount, a new hire, a second location, a larger customer. It turns management from reaction into choice.

What you will learn

Break profit into its drivers: volume, price, mix, variable cost and fixed cost
Distinguish fixed from variable costs and why the difference matters
Calculate contribution and break-even for the business
Identify which driver has the largest effect on profit

Core questions

What is our contribution margin, and how many sales do we need to break even?
Which costs rise with each sale, and which do not?
If price rose 5% and volume fell 5%, would we be better or worse off?
Which driver are we managing least well today?

Work through the module

Case → Decision → Framework → Tool → Application → Implementation → Review

CaseWhat is happening?

Bakery and café group, 3 outlets · Illustrative teaching case

A bakery group grows revenue by adding wholesale orders for supermarkets. Staff are busier and turnover is up by a third, yet profit is flat. The wholesale orders carry deep discounts, need night shifts and create waste when orders change at short notice. Nobody had calculated the contribution of wholesale against retail before accepting the contracts.

DecisionWhat does the leader need to decide?

Keep growing wholesale for volume, renegotiate it, or refocus capacity on retail?

FrameworkHow should they think about the problem?

The profit driver tree

Profit = (price − variable cost per unit) × volume − fixed costs. Each branch breaks down further: price into list price and discounts, volume into customers and frequency, cost into materials, labour and waste. The tree shows where a small change produces a large effect.

ToolWhat can they use?

Profit driver tree and break-even calculationCalculation

Classify last quarter's costs as variable or fixed
Calculate contribution per unit or per sale
Break-even volume = fixed costs ÷ contribution per unit
Model a 5% change in price, volume and variable cost; compare the effect on profit

ApplicationHow does it apply to their business?

Apply it to your own business:

Build the driver tree for your largest product or service line
Run the 5% sensitivity test on each driver
Rank the drivers by their effect on profit

ImplementationWhat changes?

What should change in the business:

Name an owner for the most powerful driver
Set a monthly measure and target for it
Require a contribution check before accepting large discounts or new contracts

ReviewDid it work?

How to tell whether the change worked:

Did the chosen driver move in the month after it gained an owner?
Are large deals now approved with a contribution figure attached?
Has break-even volume fallen, or margin of safety increased?

After this module you should be able to decide

Keep growing wholesale for volume, renegotiate it, or refocus capacity on retail?

And leave with: A profit driver tree for your business.

Sequence · Business Foundations

Related modules

Part of these learning paths