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*Average seed
Rayo OKC 3 Ottawa 1 +0.7
Minnesota 3 Edmonton 1 -0.2
Indy 3 Carolina 0 +0.1
Ft. Lauderdale 2 Puerto Rico 0 -0.1
Week of 10/22100.0*Average seed
Ft. Lauderdale 0 Rayo OKC 2 +0.6
Carolina 1 Minnesota 0 +0.2
Tampa Bay 1 Ottawa 1 +0.1
Cosmos 4 Miami 0 +0.0
Week of 10/29100.0*Average seed
Minnesota 0 Cosmos 1 +0.1
Points
Chance Will Win Championship