OOC: There may be one in Free Trader or somewhere, but I haven't been able to locate one in the main book. Of course, that doesn't necessarily mean that it's not there.... But, in the true spirit of galactic capitalism, you can always fall back on the "whatever the market will bear" premise....OOC: Is there a rate in the books?
OOC: Well, that, and the fact that Zeering Conglomerate has other, more vital, uses for the Zax that go well beyond trading/cargo speculation. The Conglomerate isn't really that interested in having the Zax be a profitable trading ship. But, still, if her capable crew can manage to offset some of the operating expense of the ship by using some good personal initiative, so much the better! This is just the sort of thing that comes into consideration at bonus time....(OOC - True, but it makes sense. That's specialized enough that it would circulate among the relatively small number of people interested in that kind of ship. And the Zax provides Jump 3 drives, which is quite a bit faster than most merchant vessels...making it useful for sensitive, small cargoes that are time-sensitive. I expect that Jump 3 capability is one of the things that keeps them financially solvent.)

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.