Once a business has customers, the next question is whether each sale makes money. It sounds like something that should have been settled before the first sale, and in many businesses it never is. Prices were copied from a competitor or set low to win the first customers, costs sit in one pool, and the owner knows the business makes money overall without knowing which of its products or services do. The second span on the first bridge answers the question line by line, and then asks a harder one: whether the demand behind those sales will grow.
What the measure is
The measure this span reaches is gross profit above zero: revenue less the direct cost of delivering it. Direct costs rise and fall with each sale. Materials, the labour spent on the job and the cost of getting it to the customer are the usual ones. Rent and insurance stay the same whether the business sells more or less; those are fixed costs, and the next span sets them against gross profit.
Gross profit comes second because it is computed from revenue, and before breakeven because breakeven is computed from it. It is also the first measure that tests the business model. Revenue mostly shows that the founder can sell, and a business can win plenty of customers by charging too little. It cannot reach gross profit that way.
The figure has to be shown for each product or service line that makes up a meaningful share of revenue. A total can hide a line that loses money on every sale, and a buyer who is shown only the total will assume one of the lines does.
One margin, three lines
Illustrative. A service business whose gross margin is a healthy 21 percent overall. Split by line, one of its three lines loses money on every sale. A buyer shown only the total will assume one of the lines does.
Revenue by line, thousands of dollars
Gross margin by line
Gross profit by line, thousands of dollars
Overall: $170,000 of gross profit on $800,000 of revenue, about 21 percent. Installation gives back $12,000 of it.
Show the numbers
| Line | Revenue by line, thousands of dollars | Gross margin by line | Gross profit by line, thousands of dollars |
|---|---|---|---|
| Service plans | $400k | 38% | $152k |
| Installation | $300k | −4% | −$12k |
| Parts | $100k | 30% | $30k |
The three drivers
What moves the business from revenue to gross profit
Three drivers do the work: one sets prices that contribute, one proves what each sale costs, and one shows the demand will grow.
Revenue
- PricingBuilds each price from the full direct cost of the sale plus a target margin
- Direct Cost CaptureRecords the direct cost of every sale against the line that earned it
- Demand EngineProduces the evidence a buyer reads for growth: repeat customers, price rises that hold, spare capacity, new customers' sources
Gross profit
Pricing has the largest effect on value of any work on this bridge. Each price is built from the full direct cost of the sale plus a target margin, discounts get a reason and a ceiling, and prices are reviewed when costs move. What it recovers is margin on revenue the business already has, which a buyer capitalizes in full, and the cost is a price sheet and some conversations with customers.
Direct Cost Capture records what each sale cost against the line that earned it, at the time the cost is incurred. That is what lets a margin report by line come out every month and be traced back to the ledger. Until it exists, the owner can say the business makes money but not where.
Demand Engine is about whether the gross profit will grow. The lender and broker behind a sale to an owner-operator look for four things: customers who come back, price rises that held, room to serve more without new fixed cost, and where new customers come from. Demand Engine keeps a record of each. If those records are missing, growth is a claim in the sale listing, and the buyer pays for the business as it stands on the day of sale.
How the drivers depend on each other
They are listed in one order, and the dependencies run the other way.
Pricing cannot start until costs are captured. A price built from a cost nobody knows is a guess, and the guess is usually low, because the costs a pooled ledger loses, labour hours above all, are the ones that are hardest to see.
Demand Engine needs both of the others and something from the previous span. Showing that growth kept its margin takes a monthly margin by line. Showing that a price rise held takes a price sheet that says what the price was and a ceiling that says what counts as a discount. Counting returning customers takes the invoicing system set up on the previous span, since a sale made outside it belongs to nobody.
So a business that wants to show growth codes its costs first, fixes its prices second, and only then has the records from which growth can be argued. The same chain explains why Direct Cost Capture ranks near the bottom on value while Pricing ranks first. Knowing the cost of a sale does not change the cash the sale brings in. It removes a buyer's suspicion and it makes the price sheet possible, and its value shows up in the price sheet.
What the owner has to be willing to do
Two of the conditions for this span depend on the owner more than on any system. Every price review that ends in a rise will lose someone, and an owner who cannot accept losing a customer on price will leave prices where the first customers set them while costs climb. Capturing labour needs the people doing the work to record their time against jobs, which takes a simple tool and a habit enforced by whoever schedules the work. Neither is expensive. Both happen only if the owner decides they matter.
How the span comes undone
Proven gross profit can still erode, and it tends to go in a few familiar ways. Suppliers and wages go up while the business's prices stay where they were set, so the margin narrows each month until the busiest periods earn the least. A price rise is handed back in discounts, one customer at a time, by people trying to keep the peace, until it survives on the price sheet and nowhere else. Returning customers stop returning, and since nobody counts them, the business finds out when revenue falls. The business fills up and growth stalls on a constraint nobody was measuring, crew hours or delivery slots. And as the owner gets busier, more of the revenue comes back through the owner's own relationships, because those are the easiest sales.
Each of the three drivers answers some of these, and every answer is a record kept on a schedule, so that a skipped review, a thinning margin, a lost customer, a creeping discount, a full calendar or a slide back to the owner's contacts shows up in the month it happens. An owner can promise a buyer good habits; records like these are how the buyer checks.
Crossing the span
The span is crossed when the unit economics are proven. Every significant product or service line contributes something toward fixed costs, shown line by line from the ledger, and there is evidence behind the demand: customers who come back, price rises that held, and capacity to serve more without new fixed cost.
That condition joins a claim about the present to a claim about the future. That the business makes money on what it sells, a buyer at the end of the first bridge will accept without argument if the records support it. That the demand will be there to sell into, they will accept only if the evidence is already in the records when they arrive, because nobody can produce a history of growth during the months of a sale.