Does psychological pricing actually work?

$97 instead of $100. $9.90 instead of $10. $499 instead of $500.

You've seen these numbers. Everyone has. The question is: does it actually work, or is it just a market habit that nobody questions?

The honest answer: it depends on context. And "it depends" is the most useful answer I can give.

When it works:

In low-involvement purchases — the ones where the customer decides quickly, without much research — a broken price can make a difference. $9.90 feels like "less than ten" even though the real difference is just ten cents. The brain processes the first digit before the rest.

In e-commerce and retail, where customers compare prices side by side, $97 vs. $100 can be the detail that tips the scale. Not because of the $3 difference, but because of the perception that it's "under a hundred."

When it doesn't work:

In high-value services — consulting, projects, contracts — nobody makes a decision because of $3. The client looks at the value delivered, not the last digit. Charging $4,997 instead of $5,000 can even come across as a trick and reduce trust.

In B2B markets, where decisions go through approvals and comparisons, a broken price is irrelevant. The buyer looks at the entire proposal, not pennies.

The practical rule:

Psychological pricing is a tactic, not a strategy. It can help convert at the last moment — when the customer already wants to buy and is choosing between options. But it doesn't save a badly calculated price, it doesn't compensate for lack of value, and it doesn't replace the work of understanding how much it costs to deliver and how much the customer is willing to pay.

In my experience: calculate the right price first. If you then want to round it to $97 instead of $100, that's fine. But start with the numbers, not the trick.

Calculate the right price first. Then decide whether you want to round it. The Calculadora de Preços shows what your numbers actually say. No sign-up required.