Just got extended also...
http://espn.go.com/mens-college-basketball/story/_/id/10269553/donnie-tyndall-southern-mississippi-golden-eagles-agree-extension-2018-season?ex_cid=espnapi_publicBase of $500,000 through 2018 and owes 35% of that. I am going to assume that means "2017-2018 season". So...3 seasons x $500,000x 35%...okay that's $530,000...not as much as I thought.
I guess if he pays a bit of that every year it's still a great deal for him, assuming he gets at least what Cuonzo had, which I believe was $1.3 million per year. Heck, if he gets that he could pay the entire buyout the first year and still make more than he is now for that year.