If it helps I am a retired electrical engieer as well as having been an electrician for many years, the breaker is around $100 depending on brand and you area etc. The bulk of the cost is labor and any other materials, wire, boxes etc. Labor is a big variable as some installations are simple and some are time consuming. Ask for a breakdown of the quote parts and labor. No point in asking for material item by item, you just need to know each cost labor and materail. From what you said it sounds like probably arout $200 in parts +/-. Average labor rate in my area, Texas, is around $50 to $70 per hour. That meansyour guy will be there pretty much all day unless there are two of them working which probably the case if they are pulling wire. Get a second quote from a reputable contractor, Places like Lowes and Home Depot and other major building suppliers have lists of these people. Always, when it comes to electrical, as for your quote to be broken out into materail and labor. If they won't break it out I would not do business with them. Allen