How are these numbers calculated?

Big Games

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

Week of 5/24100.0*Chance wins title100.0*Average seed
Tampa Bay 3 Ft. Lauderdale 2 +7.2
+0.1
Cosmos 1 Indy 1 +3.3
+0.1
Ottawa 2 San Antonio 3 -2.9
-0.1
Minnesota 0 Carolina 0 -1.6
+0.1
Week of 5/31100.0*Chance wins title100.0*Average seed
Atlanta 1 Minnesota 2 +27.2
+0.4
Indy 1 San Antonio 2 -9.8
-0.2
Ft. Lauderdale 0 Cosmos 3 -7.9
-0.1
Carolina 2 Tampa Bay 0 -1.2
-0.1
Week of 6/7100.0*Chance wins title100.0*Average seed
Tampa Bay 3 Minnesota 3 Yes
+0.2
San Antonio 2 Ft. Lauderdale 2 +7.2
+0.1
Points
Chance Will Win Championship