Well said, for a goathead!:laughing:By definition a fair deal is when all parties concerned feel they got a good deal.
I am assuming what your really asking is how to properly price your jobs. For that I recommend a book. "Markup & Profit, A Contractors Guide by Michael Stone. For less than $40 you can own the book and buy a great cup of coffee to get you started. You'll learn how to calculate the proper percentage for your business.
Looking through some old threads, I have to say this might be one of the best posts I've read on here, even as simple as it is. This question gets asked a lot on here, this about sums it up.Fair is as much as you can get. As a practical matter, the question is wrong and represents wrong-headed thinking. Is it fair that you lose money when you underbid? Of course it is because fair is not about the level of profit. Fair is about giving the customer what they bought for the price you and they agreed on.
You have no responsibility to save them money, they have no responsibility to make you rich. Free enterprise is predicated on the freedoms of both parties. You have the freedom to price the job as high as you want to, the customer has the freedom to say yes, or no.