Custom-built Web sites require lots of give and take between the customer and the firm that is building the site. The discovery process itself can require a considerable investment of time from both parties. There are really no simple formulas to apply.
Having said that, we can assure you that our price quotation process is as systematic as we can possibly make it. By the time you receive a price quotation from us, we have covered all the bases with you, and our joint expectations about pricing and deliverables will be clear.
More information on how we price out projects.