Spaceships: Computers
In case you're wondering why I didn't add a formula for the cost, I couldn't find one that works across technological levels and performance.
Theoretically, you want diminishing returns the greater the rating, and accelerate that if you cross the base rate per technology level, to make it prohibitively expensive.
I think that computers at technological level seven that can compute jumps have got to cost a great deal more; tech level twelve rating five computer might be costed at tens of thousands of schmuckers.
Computers take space; I'd hack it out of the existing bridge requirement, and the designer can then decide if you want to place it in a secured separate room, and allocate additional tonnage. Of course, if it's the size of a laptop or a Raspberry Pi in a yacht, you might not bother beyond a bulkhead safe.