I say the most important thing that a person can do is count all of the costs. If you can determine how much it will cost you to be in business, you will know how much to charge. Determining the cost is the most difficult part because there is always something that gets left out.
Once you determine your cost, then you can set sales goals that you must meet, or you won't have enough money to make ends meet.
Read a book called "Mark Up and Profit in Construction" by Stone. It will help.
Best Regards,
Doc
