Although I answered in a longer email, you need to find out how many total you have and if they are all $25 or if there are others, and what the design is. If it's the one that's already known, see below, if it's something new, it's open for discovery.

Without knowing the details, I suspect you might get $100 or more for a chip until all the people who want one, have them, after that ???

The big question is how many do you have?