How are these numbers calculated?

Big Games

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

Week of 2/25100.0*Average seed
Oilers 1 Ducks 0 -0.1
Mariners 1 Gulls2 0 +0.0
Week of 3/4100.0*Average seed
Ducks 0 Wave 1 -0.3
Empire 1 Goldrush2 0 +0.1
Gulls2 0 OC1 1 +0.1
Games Above .500
Chance Will Make Playoffs