Around here, a 200a. service change will run around $2200.00.
The best way I can help you in your pricing problem is to tell you to start off charging hourly for as much work as you can.there's really no way to get hurt on Time and Mat. as long as you remember to charge for the running around each job requires and as long as your hourly rate is high enough to make the job worth your while but low enough to be competitive.
Around here, the average rate is about $85.00 per hour. I say average because every EC has their own way of reaching that average. Some charge $150.00 for the first hour and $70.00 for every hour thereafter, some charge a flat rate but include atleast 1/2 hour travel time, etc.
Basically, you need to know how much you can get away with charging and still get the job. Charge as much as you know the market in your area will support.
The only other advice I can give is not to try to push to get too big too fast.
Stay small and let the business force you to expand. Don't charge all your mat. in bad times. If work dries up, the last thing you want is an unexpected monthly bill from a wholesale house.
Keep your overhead down and your profits up.
Good luck
