How are these numbers calculated?

Big Games

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

Week of 1/14100.0*Chance wins title100.0*Average seed
Legends 2 IE Surf 0 -0.3
+0.1
LAGSB 3 PDA 5 +0.2
+0.1
Kaufman 1 LAGSD 2 -0.2
Surf 0 Navy 1 -0.9
Surf 0 Hodson 1 -0.9
Kaufman 0 Navy 3 +0.2
Demelo 2 LAGSB 0 +0.2
Demelo 2 DMCV 2 -0.1
DMCV 2 IE Surf 1 -0.0
Week of 1/21100.0*Chance wins title100.0*Average seed
Demelo 5 Surf 0 -6.7
-1.1
Hodson 1 Navy 2 -1.8
Albion 2 Demelo 4 -0.3
-0.1
Surf 1 Kaufman 2 No
-1.1
PDA 1 Demelo 3 -0.1
-0.1
Navy 4 Albion 0 -0.1
-0.0
DMCV 1 LAGSD 0 +0.1
-0.1
PDA 2 IE Surf 1 +0.1
Legends 2 DMCV 0 +0.1
IE Surf 3 Kaufman 0 +0.1
Week of 1/29None
Points
Chance Will Win Championship