How are these numbers calculated?

Big Games

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

Week of 5/30100.0*Average seed
Jacksonville 0 Carolina 4 +1.8
San Antonio 1 Ft. Lauderdale 1 +0.1
Indy 2 Tampa Bay 2 +0.0
Minnesota 1 Cosmos 1 -0.0
Week of 6/6100.0*Average seed
Carolina 1 Minnesota 1 -0.4
Tampa Bay 2 Edmonton 1 -0.1
Jacksonville 0 Ottawa 0 +0.1
Atlanta 0 San Antonio 1 -0.1
Week of 6/13100.0*Average seed
Minnesota 2 Ft. Lauderdale 3 +0.8
Points
Chance Will Win Championship