How are these numbers calculated?

Big Games

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

Week of 3/7100.0*Chance in playoffs100.0*Average seed
WL B6 3 NL A6 1 Out
-0.5
SSE B6 2 NL A6 5 +4.8
+0.2
OK B6 1 NL C6 3 -2.0
-0.1
WL C6 1 OK B6 9 +0.8
NL A6 0 NL C6 3 -0.1
Week of 3/14None
Week of 3/21None
Games Above .500
Chance Will Make Playoffs