How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 5/17100.0*Down To PTT100.0*Average seed
C. Rizespor 3 Akhisar Bld. 1 Yes
Kayseri Erciyes 0 Istanbul Basak. 1 +0.2
Week of 5/23100.0*Down To PTT100.0*Average seed
Karabukspor 2 Sivasspor 1 +0.5
Trabzonspor 3 Balikesirspor 2 +0.2
Balikesirspor 1 Gaziantepspor 1 +0.2
Kayseri Erciyes 4 Karabukspor 3 -0.1
Kasimpasa 3 Kayseri Erciyes 3 +0.1
Week of 5/30None
Points
Chance Will Win Championship