How are these numbers calculated?

Big Games

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

Week of 10/15100.0*Chance wins title
Jacksonville 2 Cosmos 4 +1.6
Minnesota 3 Edmonton 1 +1.2
Indy 3 Carolina 0 -0.3
Week of 10/22None
Week of 10/29None
Points
Chance Will Win Championship