又 The Power of One: How Small Changes Deliver Big Profit Gains

Most SME owners believe that fixing profit means making one big change. A large price rise. A painful round of cost cutting. A dramatic push for new sales. These moves feel decisive, but they also carry the most risk, and they are the hardest to reverse if they go wrong.

There is a quieter approach that works just as well, and often better. It is called the Power of One, and it is built on a simple idea: a small, one percent improvement in several areas of the business, made at the same time, can lift profit far more than most owners expect. This post walks through the framework, then shows exactly how it played out for one of my clients.

When profit is under pressure, the instinct is to look for a single big lever to pull. Raise prices by ten percent. Cut headcount. Win one large new customer. These changes can work, but they come with real downsides.

A large price rise risks losing customers. A big cost cut risks damaging morale or quality. Chasing one large new customer concentrates risk in a single relationship. Each of these moves also takes time and energy to plan and defend, and if the change does not land well, there is no cushion to fall back on.

The Power of One takes a different path. Instead of one large change, it spreads a small amount of improvement across several levers of the business at once. No single change needs to be dramatic. Together, they compound into a result that a single big move rarely matches, and with far less risk attached to any one decision.

The Power of One is a simple framework. You take the main levers that drive profit in your business, typically price, sales volume, cost of goods, overheads, and the number of days it takes customers to pay you, and you look for a realistic one percent improvement in each one.

Think of your business as a set of six taps feeding into a tank. Each tap is turned only slightly further open. No single tap makes much difference to the flow on its own. However, when all six taps open a little more at the same time, the tank fills noticeably faster. The Power of One works the same way. Each lever moves only a small amount, but profit sits at the point where all of these small movements meet, so the combined effect is larger than any one change could achieve alone.

Here is a simplified illustration. Take a business with turnover of £500,000 and a net profit of £50,000. A one percent price increase alone might add only a few thousand pounds to profit. However, add a one percent lift in volume, a one percent reduction in cost of goods, a one percent trim in overheads, and a small improvement in how quickly customers pay, and the combined uplift can reach fifteen to twenty percent of starting profit. That is the compounding effect at work, and it is what makes the framework so useful for SME owners who want meaningful results without betting the business on one large move.

One of my clients, a marketing consultancy with around fifteen staff, came to me with a familiar problem. Turnover had grown steadily over three years, but profit had barely moved. Margins were thin, costs were creeping up, and the owner felt that the only way to fix it was to either raise prices sharply or make redundancies. Neither option sat well with them.

When we reviewed the numbers together, the business had turnover of roughly £1.2 million and a net profit margin of around six percent, giving a net profit of about £72,000. Debtor days, the average time it took clients to pay their invoices, sat at fifty-eight days, which was putting real strain on cash flow. The owner was working long hours simply to keep the business steady, without seeing the reward for that effort show up in profit.

Rather than reach for one dramatic solution, we agreed to apply the Power of One and look for small, realistic improvements across six areas of the business.

We reviewed pricing across the client's service lines and found several packages that had not been adjusted in over two years, despite rising delivery costs. We introduced a targeted price increase of just over two percent on average, applied only to new client agreements and renewals, with a simple, honest explanation to clients about rising costs. There was no pushback from a single client.

The consultancy had a habit of finishing a project and moving straight on to the next one, without following up on further work. We introduced a light-touch follow-up process three months after project completion, which brought in a small but steady lift in repeat business, adding just over one percent to overall sales volume within two quarters.

A large share of delivery cost sat with two main subcontractors. We renegotiated payment terms and bundled work into larger, more predictable blocks, which earned a small discount. Combined with reduced rework from clearer project briefs, cost of goods fell by just over three percent.

Rather than cutting a role or a major cost line, we went through smaller recurring costs, including software subscriptions that were no longer fully used and an office supplies contract that had not been reviewed in years. These small trims reduced overheads by just over two percent, with no impact on the team.

Debtor days were reduced from fifty-eight to fifty-three through three simple changes: invoices were sent the same day a project milestone was completed, payment terms were stated more clearly on every invoice, and a polite reminder was sent automatically three days before the due date. This freed up cash without a single difficult conversation with a client.

On the supplier side, we reviewed payment terms and, where suppliers were flexible, shifted payment slightly later without damaging any relationships. This small change improved the timing of cash leaving the business, supporting the same cash position that the improvement in debtor days had already started to build.

None of these six changes was dramatic on its own. Taken together, they lifted the consultancy's net profit from £72,000 to approximately £95,600, an increase of around thirty three percent, within two quarters of consistent effort 🤯. Cash flow also improved meaningfully, thanks to the combined effect of faster debtor collection and better-timed supplier payments.

Returning to the taps analogy, no single tap was turned very far. Price moved a little. Volume moved a little. Costs and overheads each moved a little. However, because all six taps opened together, the tank filled far faster than the owner expected, and with far less risk than a single large price rise or a round of redundancies would have carried.

You do not need a large business or a complex system to apply this framework. Start with a simple process.

Treat this as a habit rather than a one-off exercise. Revisit the same six levers every quarter, and look for the next small percentage of improvement in each one. Over time, these small, repeated gains add up to a profit position that feels transformed, without ever requiring a single risky, large-scale change. If you would like help identifying which levers matter most in your own business, that first conversation is often where the biggest early gains are found.

TLDR: A one percent improvement across six profit levers at once, rather than one big change, lifted a client's net profit by 33% in two quarters.

📘 Want to research this further?

I first read about the Power of One in Scaling Up by Verne Harnish. You can also check out this podcast with Alan Miltz who wrote this chapter for the book.