The business must provide significant income beyond just supporting you and your family.
This could be a commercial cleaning business that provides owner benefits of $100,000+ a year.
If business income is low (depending on the city less than $50,000), it is important to show the economic impact at the local, state, and national levels. We have had multiple E2 visa investors with profits under $50,000 but the companies employ 5+ Americans.
In cases of low or negative business income, it is important for you, the business plan writer, and attorney to emphasize your contribution to the local, state, and national economy.