How are these numbers calculated?

Big Games

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

Week of 2/14100.0*Average seed
Oakland 1 Calvin 4 +0.4
Calvin 4 Oakland 2 +0.1
Week of 2/28100.0*Average seed
Calvin 1 Davenport 3 -0.2
Davenport 4 Calvin 1 -0.1
Points
Chance Will Make Playoffs