The metrics that tell you if the business is healthy
Revenue is not profit and profit is not cash. Five numbers worth watching, how often to look at each, and what threshold should actually trigger action.
· 5 min read
Revenue is not profit, and profit is not cash
These three get used interchangeably in conversation and they answer completely different questions, which is why a business can be growing, profitable and unable to pay its suppliers at the same time.
Revenue is what you invoiced. It says the market wants the thing, and it says nothing about whether selling it is worth doing. A business can grow revenue indefinitely while losing money on every unit, and growth makes the loss bigger.
Profit is what is left after costs, on paper, over a period. It is the right measure of whether the business model works and it is an accounting view — it includes money you have earned but not received, and it excludes money you owe but have not paid yet.
Cash is what is actually in the account today. It is the only one that determines whether the business survives the month. Profitable businesses fail for cash reasons routinely: a large customer pays 60 days late, stock is bought before it sells, a tax payment lands in a thin month.
Watching only revenue is the most common mistake. Watching only profit is the more sophisticated version of the same mistake.
Five numbers, and what each one is for
Cash on hand, and how many weeks of costs it covers. The single most important number in a small business, because it is the one with a hard floor.
Revenue, split by product or segment. The split is what makes it useful — total revenue moving sideways can hide one line collapsing while another grows.
Gross margin, meaning revenue minus the costs directly attributable to delivering it. This is where pricing problems show up first, and it moves quietly: a supplier increase or a discount habit shows here months before it shows in profit.
Customer acquisition cost — total spend on winning customers over a period, divided by customers won. Not precise, and the trend is what matters.
Customer lifetime value, or the closest honest approximation: average revenue per customer per period, times how many periods they typically stay, times gross margin.
Five is roughly the limit of what gets genuinely watched. A dashboard with twenty metrics is a dashboard nobody reads, and the ones that fall off it are never the decorative ones.
Cash on hand is the one that ends businesses
Expressed as an absolute figure, cash tells you very little. Expressed as weeks of runway — cash divided by average weekly outgoings — it becomes the most actionable number the business has, because it converts a balance into time, and time is what decisions need.
The useful version looks forward rather than back. A forecast of the next thirteen weeks, listing expected receipts and known payments, will show the thin week before it arrives. Almost every cash crisis in a small business was visible weeks in advance to anyone who had written down when money was due in and when it was due out, and was invisible to anyone looking at the current balance, which looked fine.
The reason this beats a profit report is timing. Profit is measured over a period and smooths everything inside it; cash problems are entirely about a specific date on which a specific payment is due and a specific receipt has not arrived. A month can be comfortably profitable and contain a week where the account does not cover payroll, and nothing in a monthly profit figure will tell you that week is coming.
Acquisition cost and lifetime value, honestly estimated
These two are the most useful pair in the list and the easiest to fool yourself with, because both are estimates and both look like measurements once they are in a spreadsheet cell.
Acquisition cost is straightforward to calculate and easy to understate. The honest version includes the time spent selling, not only the advertising spend, and time is the dominant cost in most small businesses. A calculation that counts only ad spend produces a flattering number and a wrong decision.
Lifetime value is harder, and the trap is having insufficient history. A business two years old cannot know how long customers stay, and the natural workaround — assuming they stay as long as the ones who have stayed so far — systematically overstates it. The defensible approach is a deliberately conservative assumption, stated explicitly as an assumption, rather than a confident figure.
What the pair is actually for is the ratio and its direction. If acquisition cost is rising while lifetime value holds, something in the sales channel is degrading, and that is worth knowing even if neither number is precise. Precision is not what the comparison needs.
How often to look, and what triggers action
Different cadences, chosen so that checking a number matches how fast it can move and how fast you could respond.
Cash weekly, with a rolling forward view. It changes daily and the response time on a cash problem is short.
Revenue and gross margin monthly. Weekly revenue in a small business is mostly noise, and reacting to noise produces changes whose effects you then cannot read.
Acquisition cost and lifetime value quarterly. Both are estimates built on samples, and neither is meaningful over a few weeks.
The part usually missing is the threshold. A metric with no threshold is a metric you look at, feel something about, and move on from. Deciding in advance what level triggers what action is what converts watching into managing: below this many weeks of runway, stop discretionary spending; margin below this figure on this product line, reprice or drop it.
Thresholds have to be set when things are calm, because that is when the judgement is good. A threshold chosen in the middle of a bad month will be chosen to justify what you already want to do.
What a dashboard cannot tell you
It cannot tell you why. Every one of these numbers is an outcome, and the causes live outside the spreadsheet — in a supplier's pricing, a competitor's opening, a member of staff who left, a channel that stopped working. A dashboard is a smoke alarm, and reading the alarm harder does not locate the fire.
It cannot see the things it does not count. Customer goodwill, staff morale, the quality of the pipeline, the maintenance you keep deferring — all real, all consequential, none on the dashboard. The danger is not that they are missing; it is that a well-built dashboard makes the business feel measured, which makes the unmeasured parts easier to forget. A quarter of strong numbers produced by working everyone flat out looks identical to a good quarter.
And it cannot distinguish a signal from noise on its own. A single month's movement in a small business is usually variation — one large order, one late payment, one seasonal effect — and treating each one as information produces constant reactive change. Comparing to the same period last year, and looking at direction over three or four periods rather than one, is most of what makes a small-business metric readable at all.
Common questions
Where do these numbers come from if the accounts are only done annually?
Cash and revenue are available without any accounting work — a bank balance, a list of what is due in and out, and the invoices raised. Gross margin needs the direct costs per product, which is usually a one-off exercise to establish and then a small update when prices change. Waiting for year-end accounts means learning about a problem eleven months after it was actionable, and none of the five require a closed set of books to be useful directionally.
How many weeks of cash should a small business hold?
It depends on how variable your receipts are and how much of your cost base is fixed, so a single figure quoted as a rule tends to mislead. The reasoning that transfers: work out the longest realistic gap between a payment going out and the corresponding money coming in, then hold enough to cover that gap plus your fixed costs through it. A business paid on delivery needs far less than one invoicing on long terms.
Is it worth tracking metrics if the business is very small?
Cash runway and gross margin are worth it from day one, because both catch problems that are cheap to fix early and expensive later — mispricing in particular compounds silently. Acquisition cost and lifetime value need enough customers to mean anything, so they can wait. The overhead of the first two is a spreadsheet updated weekly, not a reporting function.
What should I do when a metric moves in the wrong direction?
First establish whether it is a signal, by checking the direction over three or four periods and against the same period last year. Single-period movement in a small business is usually variation from one large order or one late payment. If the direction holds, the dashboard has told you where to look and cannot tell you why — the cause is outside the numbers, in pricing, suppliers, channels or staffing.
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