Ask most owners how they set their prices, and the honest answer is some mix of what competitors charge, what felt reasonable when the business started, and a quiet worry that customers will leave if prices go up.

That worry keeps a lot of businesses underpriced for years. And because price flows almost entirely to profit, even a small gap can be one of the most expensive problems a business has.

Why a small change matters so much

Consider a product with a $100 price and a 30% margin, so each sale leaves $30. (Illustrative.) Raise the price 5%, to $105, and that same sale now leaves $35 — a 17% increase in profit per unit.

At that new price, you could lose about one in seven customers and still make the same total profit. Most price increases lose far fewer than that.

A SMALL PRICE CHANGE, A BIGGER MARGIN

5% more price. 16.7% more per sale.

Before$100 price

$70 cost + $30 contribution

After$105 price

$70 cost + $35 contribution

Cost per unitContribution per unit
85.7% of the original sales volume would produce the same total contribution.

Illustrative example from the article. Assumes cost stays at $70 per unit, with no extra percentage-based fees or changes in sales mix or fixed costs. $35 ÷ $30 − 1 = 16.7%; $30 ÷ $35 = 85.7%.

Five signs your prices are too low

1. You almost never lose a sale on price. If nobody pushes back, you're probably leaving money behind. A healthy price gets some resistance.

2. Your last increase was years ago. Your costs have gone up since then — materials, wages, shipping, software. If your prices haven't, your margin has quietly shrunk.

3. You're busier, but not more profitable. Growing volume with flat profit often means each sale carries too little margin.

4. You price by looking at competitors. Competitors may have different costs, different customers or simply the same fear. Their price tells you what they chose, not what your customers will pay.

5. Customers say you're a great value. It's a compliment. It can also mean they'd have paid more.

If two or more of these sound familiar, your pricing deserves a closer look.

How to test an increase safely

Raising prices doesn't have to be a leap of faith. You can test it in a controlled way:

Raising prices for existing customers

When it's time to bring current customers along, a little care goes a long way. Give notice rather than surprising them on an invoice. Keep the explanation short and honest — rising costs, continued investment in quality or service. Consider timing the change with something customers value, like an improvement or a new offering. Most loyal customers accept a fair, well-communicated increase. The ones who leave over a modest change are often the least profitable to serve.

Often the fastest lever you have

Cutting costs takes time. Winning new customers takes money. A well-tested price change can improve profit almost immediately, without either. It's worth knowing, with real numbers, whether that opportunity is sitting in your business.