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*Chance in playoffs100.0*Average seed
Goldrush1 1 Empire 0 Out
-0.6
OC2 1 Flyers 0 +1.2
+0.2
Wave 0 Heat 1 +0.8
+0.0
Leafs 1 Kings 0 +0.6
+0.2
OC1 1 Gulls1 0 +0.1
Week of 3/4100.0*Chance in playoffs100.0*Average seed
Empire 1 Goldrush2 0 +0.5
Flyers 0 Oilers 1 +0.2
Kings 0 Mariners 1 +0.1
Games Above .500
Chance Will Make Playoffs