How are these numbers calculated?

Big Games

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

Week of 10/18100.0*Chance wins title100.0*Average seed
Indy 1 San Antonio 0 -9.9
-0.2
Minnesota 0 Cosmos 0 +6.6
+0.1
Week of 10/25100.0*Chance wins title100.0*Average seed
Minnesota 0 San Antonio 1 +24.2
+0.4
Ft. Lauderdale 1 Edmonton 0 +0.1
Week of 11/1100.0*Chance wins title100.0*Average seed
San Antonio 1 Cosmos 0 +25.4
+0.3
Carolina 2 Minnesota 2 +23.1
+0.2
Points
Chance Will Win Championship