Bows depreciate faster than cars for some reason. I’ve bought and sold many over the years and generally I get and give about 60ish% what it went for new, less if there’s damage which if it’s a hunting bow guarantee there is. Sometimes you can sell it with the accessories hanging off it but usually folks already have their own crap so figure on selling it nekid. Take into account any nicks, scuffs, scrapes, scratches, gouges and such. I usually let it eat for a couple weeks and then slowly drop the price. As to that how low you go depends on you and figure at what point am I taking a bath and it’s not worth it to sell it.