How are these numbers calculated?

Big Games

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

Week of 8/11100.0*Chance in playoffs100.0*Average seed
Marauders 2 BluesBrothers 6 +4.3
+0.2
Brewskis 4 TheFreeAgents 2 +3.0
Hansons 4 AlbinoRhinos 1 -0.2
Week of 8/18100.0*Chance in playoffs100.0*Average seed
BluesBrothers 3 AlbinoRhinos 0 +35.0
+0.4
Brewskis 3 BluesBrothers 4 +26.5
+0.3
TheFreeAgents 6 ProTransmission 8 +5.2
+0.1
Week of 8/25100.0*Chance in playoffs100.0*Average seed
TheFreeAgents 4 Hansons 6 In
+0.1
Points
Chance Will Make Playoffs