How are these numbers calculated?

Big Games

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

Week of 10/17100.0*Average seed
Jacksonville 3 Edmonton 2 +0.1
Ft. Lauderdale 4 Carolina 0 -0.1
Atlanta 0 Tampa Bay 0 -0.1
Ottawa 1 San Antonio 0 +0.1
Jacksonville 1 Ottawa 3 +0.1
Ft. Lauderdale 0 San Antonio 0 +0.0
Week of 10/24100.0*Average seed
Minnesota 1 Atlanta 0 -0.5
Edmonton 1 Jacksonville 1 +0.1
Indy 2 Ft. Lauderdale 1 +0.1
San Antonio 1 Cosmos 2 +0.0
Week of 10/31100.0*Average seed
Atlanta 1 Ottawa 1 -0.4
Points
Chance Will Win Championship