The calculator
Potential new customers per month30
Average order value$500
Share of those customers who ask an AI assistant first25 %
Share of answers that name you today (your estimate)20 %
Estimated revenue lost each month
$3,000
about $36,000 per year
The arithmetic runs in your browser, and nothing you enter leaves the page.
The formula, and where each input comes from
| Input | What it means | Where to get it |
|---|---|---|
| Potential new customers per month | The new customers you could win in a month, all channels together | Your own books or booking system |
| Average order value | What a new customer is worth; use your margin on the first order for a truer figure | Your accounts |
| Share who ask an assistant first | Of those customers, how many would ask ChatGPT, Claude, Gemini or Perplexity before choosing | A question to new customers about how they found you, with an AI assistant among the answers |
| Share of answers that name you | How often the assistants name you for the questions those customers ask | A fixed panel of buyers' questions, four assistants, three runs, as prompt monitoring describes |
The result multiplies the first three by the share of answers that leave you out, then by the order value. It is the same formula written on the page above the sliders, and the calculator's code uses nothing else.
Why it is only an order of magnitude
- The third input is a guess until you have asked your own customers for a few months, and the result inherits the guess.
- The model counts every buyer who asks and does not hear your name as lost, when some will find you another way.
- The share of answers that name you differs by assistant and by question; one number averages that away.
- Revenue is not profit. Using your margin in the second slider gives what you would actually lose.
So run it twice, with a low guess and a high one for the third slider, and treat the space between the two results as the honest answer. Then replace the guesses with measurements: the intake question for the third input, the free visibility check or your own panel for the fourth.