I think that the figures given are after overhead. They have to be as I cannnot believe that an MD
would be happy with 65K per year. I do not begrudge a doctor's pay but no doctor on earth could save the life of a person that has no water or food. And I was treated about akin to the person who swept the house when I showed up to fix a persons well.
Truly funny as those people paid me for 14 hours of work when I could have done the job in 6. Their money, and I would bill these types "portal to portal."
ie, I'd bill from the time I started the truck until I opened my first beer that evening. That could add 4 hours to the bill and is standard practice in the industry. People that said a simple "thank you" would be treated differently. I'd bill them from the time I arrived at the site until I keft, the rest being the commute.
The moral? Treat those that provide you a service well and they will cut you a break.
I have carried on a bit too much as I worked my 14 hour day today.
The day you stop learning is the day you should die.