MISB - $150-$200 depending on box condition. (edit: A super nice box could drive this way, way up. Super minty sealed G1 figures fetch a hefty price because people grade them.)
MIB - $100-$170 depending on box condition.
Loose/complete (just to be thorough) - $40-$80 depending on box condition.
Also ensure if just MIB that all the paperwork is there (tech spec decoder, stickers, instructions, catalog, etc), as this can affect what you should pay.
Finally, be sure it's also not an Encore or E-hobby reissue, as these don't command nearly what I've quoted up there. Vintage Jazz figures are in much, much more demand than any of the reissues because his face was recast for the reissue and does not look super great compared to the originals.
Hope that helps, and keep in mind it's just me talking based on experience so this shouldn't be taken with 100% confidence
