How are these numbers calculated?

Big Games

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

Week of 9/23100.0*Chance wins title100.0*Average seed
Kickers 1 Rhinos 0 +1.8
-0.1
Week of 10/7100.0*Chance wins title100.0*Average seed
Riverhounds 0 Rhinos 2 +54.8
+0.5
Battery 4 City Islanders 0 +11.8
+0.3
Points
Chance Will Win Championship