First, I want to make sure you caught my last direct response to you, here…(It ended up being the very last post on that page and someone came in and posted right after it so you may have missed it)
Be sure to read through that response I linked above, but look at it this way:
If you offered to sell a widget … and decided since it cost you $25 to produce, you would set your price at $50 …What if no one bought at that price? Most producers in that situation would lower their price. What if someone came up to you and said “I’ll buy that widget for $40” and you decided to take the deal. What determined the price?