Well, it depends on what goes in there.
On the cheap end, a tube of ground beef is like $6.99 then five cans of various beans and veggies is like $7 total. Then you need a bit of oil, seasonings, and broth or water. Some diced sweet potato or something, an onion. Maybe it's $20.
A nice chili with decent quality stewing beef, maybe other meats, and you can get up there.