DOT says 11 hours driving then 10 off. You can continue on that schedule until you hit 70 hrs driving. DOT also uses 62. 5 mph as there limit. Now if you are running west were its 75mph you can get away with logging a bit higher mpg average.
The other thing is some comanies like JET Transport have a company speedlimit so if you turn in logs higher you are busted. So lets do some math in 70hrs of driving, if you logged all hours @ 65, (never going to do that legally) that is 4550 miles. So half are loaded thats 2225 paid @ 1. 13 a mile = $2513. 25 gross. Take out fuel (I avg 35% of gross), lot fees (can be up to $25 a trailer depending on company), food, and other expenses of living on the road. Can you make a living YES, can you get rich NO. Do you live out of a truck, eat fast food, and shower in truck stops YES. Do I enjoy it YES, no boss, work when and as much as I want!!
When your 70 runs out you take 34 off and that resets your 70. Also out of the 70 you will lose a couple hours for hooking up and delivering.
Also remember that we end up paying very little if any tax, we have alot of deductions and expenses. So you actual net is a bit higher than a regular 9-5 that takes taxes out.