Yup, re: the third point, in essentially every business, owner-operator's profit will be a lot less than revenue. For an arbitrary example, here are some numbe

Yup, re: the third point, in essentially every business, owner-operator's profit will be a lot less than revenue. For an arbitrary example, here are some numbers of a tiny public company that's been operating for over 30 years: $75m annual revenue, about half of which is recurring software subscription revenue. The net profit for the shareholders of the company after tax is $8m, so about 10% of revenue. Of the 90% of expenses, the C-suite and board are collectively getting paid around $2.7m, so call it 4% of revenue.