> right now the business has a profit, and therefore a valuation, closer to zero
You’re thinking of this like an engineer rather than a business person.
1. When selling a business like this, the $236k would be called SDI or SDE (seller discretionary income/earnings).
2. The buyer determines what, if any, of that SDE will need to go to paying someone to do what the seller does. These duties could be assumed by the buyer, they could be assumed by existing people the buyer employees, the tasks could be reduced or eliminated, etc.
3. Based on 2, the buyer will typically adjust the earnings multiple that they are willing to buy at.
4. For complex businesses that need someone doing one or more specific roles, the listing agency for the business, if good, will encourage the seller to fill certain roles to improve the overall salability of the business and multiple of earnings that it will be sold at.
5. Without really looking into the business, I’m almost certain that it can be sold for much closer to $1m (or more!) than to your suggestion of (edit) closer to $0.