The key question is what happens to each of you if you don’t come to an agreement. If you can get a good job elsewhere or otherwise monetize your time, you are

The key question is what happens to each of you if you don’t come to an agreement. If you can get a good job elsewhere or otherwise monetize your time, you are in a good position. If the company fails without you, you are in a better position. If he’s able to replace you easily you’re in a weaker position. Also - if he’s covering expenses and you aren’t, it’s not really an 80/20 split. If costs equal half of sales, then it becomes a 30/20 (60/40) split.