Can a small change really have a big impact on a business? Yes, if you keep making them. The 1% principle is about making tiny improvements, known as marginal gains, consistently. Each one seems trivial, but like compound interest they build on each other until the total is far larger than any single change. The practical answer is to pick one area, improve it by a small amount, measure it and repeat.

What is the 1% principle?

The 1% principle means making minor improvements that compound over time. Improving by 1% every day, compounded over a year, leaves you roughly 37.78 times better than where you started. The point is not the exact figure but the shape of it: small, consistent improvements lead to exponential growth rather than steady, linear progress.

The principle isn’t just theoretical. British Cycling adopted marginal gains and dominated the sport for years, improving everything from bike seats to riders’ sleep environments. Even the tiniest adjustments added up to extraordinary results.

The idea is explored in Black Box Thinking: Marginal Gains and the Secrets of High Performance by Matthew Syed, which shows how small, incremental changes can drive significant improvements over time. The value of incremental progress is also documented in The Power of Small Wins by Teresa Amabile and Steven J. Kramer.

Where can a business make 1% improvements?

Almost anywhere. The four areas where small gains are easiest to find are operational efficiency, customer service, employee productivity and financial management. In each, the aim is the same: find something slightly wasteful, slow or inconsistent and make it a little better, then move on to the next thing.

AreaWhere to look for 1% gains
Operational efficiencyStreamline processes, reduce waste, improve workflow
Customer serviceFaster response times, more personal interactions, gathering feedback
Employee productivityTraining, a better workplace environment, recognising achievements
Financial managementCutting unnecessary costs, optimising pricing, improving cash flow management

The systems and processes your business runs on are one place to look. Our articles on CRM process optimisation and the true cost of delaying system improvements look at that side in more detail.

How do you put the 1% strategy into practice?

Set micro-goals, measure progress and treat small failures as learning. Break larger objectives into small, manageable tasks, then use KPIs and regular reviews to check each change is working. As Black Box Thinking stresses, people need to see small failures as opportunities to learn and grow, not as setbacks.

  1. Set micro-goals. Break larger objectives down into small, manageable tasks.
  2. Establish measurement. Use KPIs and regular reviews to track progress and keep improvement continuous.
  3. Make failure safe. Create an environment where small failures are seen as learning, not setbacks.
  4. Use the right tools. Technology makes small improvements easier to find and track:
    • Data analytics: tools such as Google Analytics help identify improvement opportunities.
    • Project management tools: platforms such as Trello or Asana help you track and manage progress.
    • Automation: automating small, repetitive tasks brings consistency and efficiency.
  5. Build the culture. Leadership sets the tone. Encourage employees’ input, recognise their contributions and celebrate small wins to keep everyone motivated.

Involving your people matters here as much as the method. We cover why in including employees in a process review.

What does continuous improvement look like in practice?

The best-known examples are large companies that made incremental improvement a habit. Toyota’s Kaizen philosophy focuses on continuous, incremental improvement and has helped make it a leader in the automotive industry. Amazon’s pursuit of marginal gains in logistics and customer service has helped propel it to the top of e-commerce.

What these examples share is consistency: small, incremental improvements made again and again.

What are the challenges of 1% improvement?

The main challenges are keeping motivation up when progress feels slow, hitting diminishing returns in the same area, and missing bigger opportunities by only thinking small. Counter them by celebrating small wins, regularly reassessing where you are improving, and balancing small gains with occasional big innovations to stay competitive.

  • Motivation. Progress can feel slow. Celebrating small wins keeps people engaged.
  • Diminishing returns. Constantly reassess your improvement areas so effort goes where the next gain is.
  • Thinking only small. Balance marginal gains with occasional big innovations.

How do you measure the cumulative impact?

Measure the long-term effect of your improvements with KPIs and return on investment (ROI) analysis. Over time, the small gains add up, improving your bottom line and positioning the business for sustained success. Measuring also tells you which changes are worth repeating and which areas to tackle next.

To get started:

  1. Identify one area for a 1% improvement.
  2. Take action.
  3. Track your progress.
  4. Celebrate what you achieve, then pick the next area.

If you aren’t sure where your biggest small gains are, an outside view of your people, processes and systems can help. Cogent’s audit and scoping service is a structured way to find them.

Questions people also ask

How much difference does a 1% daily improvement make over a year?

Improving by 1% every day compounds, in the same way as compound interest. Compounded every day for a year, a 1% daily gain leaves you roughly 37.78 times better off than where you started. Small, consistent changes add up to far more than they seem.

What is the difference between marginal gains and Kaizen?

They describe the same idea from different places. Marginal gains is the term British Cycling made famous by improving everything from bike seats to riders' sleep. Kaizen is Toyota's philosophy of continuous, incremental improvement. Both rely on many small changes adding up over time rather than one big change.

Should a business only make small improvements?

No. Small improvements should be balanced with occasional big innovations to stay competitive. Small gains also suffer from diminishing returns if you keep working on the same area, so reassess where you are improving regularly and move your effort to where the next gain is.