How are these numbers calculated?

Big Games

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

Week of 2/7100.0*Regular season champion100.0*Average seed
Pittsburgh 3 Indiana Pennsylvania 2 +4.8
+0.1
Indiana Pennsylvania 1 Robert Morris PA 10 -3.4
-0.0
West Virginia 1 Pittsburgh 4 +2.5
+0.0
Pittsburgh 5 John Carroll 3 +1.8
+0.0
Duquesne 5 Slippery Rock 3 +0.8
Robert Morris PA 4 Mercyhurst 2 -0.7
-0.0
Week of 2/14100.0*Regular season champion100.0*Average seed
Pittsburgh 8 Slippery Rock 1 Yes
Week of 2/21None
Points
Chance Will Make Playoffs