You can request an offer that specifies your stock options as a percentage of the company. You won't know what it's worth now, but 1) honest founders will tell

You can request an offer that specifies your stock options as a percentage of the company. You won't know what it's worth now, but 1) honest founders will tell you, and 2) either way, you'll be able to do the math on what it would be worth in varying exit scenarios.