It is so easy to under bid nothing jobs. You really have to have 2 sets of numbers in your head. The store price and the customers price. Example a GFI I think is X much. Wait, they just went up in price. They don't come with trim plates. Half the time I resplice the box so I'll need a few wire nuts. I need to pay sales tax. Can't for get mark up to pay overhead and material pick-up and loss. Then I have a much biger number
How long will it take to perform the labor operation and how long will you be at the place are different. You need to figure time to clean up, show the customer what you have done collect the money, and drive time.
Figure all your expences. Don't forget things like truck repair, replacement tools, replacing general inventory, payrole, vacation time, taxes, saveing some for slow times, and proffit.
Break it down to how much you need average each day. Add some and that is what you need to make in a day. Even if it's only a 6 hour job remember that number as a minimum.
Tom
