It would be great to see a breakdown of the range of earnings and not just revenue per employee. Some SaaS companies only end up working for the ad companies Google, Linkedin and Facebook. In those SaaS businesses the House always wins. This is maybe asking for too much, but I have come across too many SaaS founders who would have made more money opening a taco stand.

Maybe the best approach to start it as a side hustle and then quit your job once you have enough traction.