when i was first starting out, and trying to build up a customer base, i used to figure the cost of all materials and special equipment(such as renting a trencher), add 30% to that figure, and then double it (for the labor). that was my price....worked pretty well most of the time, but i did get burnt some.........a few times, it took a lot of labor to get 30 ft. of wire through a "plaster wall" for a new receptacle...... [Linked Image]

ron

ps....that was also back when i used to give estimates over the phone, without even looking at the actual job.....duh!... [Linked Image]