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
San Antonio 1 Ft. Lauderdale 1 +0.1
Indy 2 Tampa Bay 2 +0.1
Jacksonville 0 Carolina 4 -0.1
Week of 6/6100.0*Average seed
Atlanta 0 San Antonio 1 -1.7
Tampa Bay 2 Edmonton 1 +0.1
Jacksonville 0 Ottawa 0 +0.1
Ft. Lauderdale 1 Indy 2 -0.0
Week of 6/13100.0*Average seed
Tampa Bay 3 Atlanta 0 -1.3
Minnesota 2 Ft. Lauderdale 3 -0.3
Cosmos 3 Jacksonville 3 -0.1
Indy 3 Edmonton 0 +0.1
Points
Chance Will Win Championship