How are these numbers calculated?

Big Games

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

Week of 2/6100.0*Chance in playoffs100.0*Average seed
Andrew 702.5 Matt 825 -3.1
-0.5
Adam 771 Nick 722 +0.8
-0.1
Mitch 824.5 Jeremy Barr 601.5 -0.2
-0.1
Jeremy Kerman 645.5 Ted 708.5 +0.1
If winner is:HomeAway
Week of 2/13100.0*Chance in playoffs100.0*Average seed
Jeremy Barr vs Andrew-1.0+1.2
-0.4+0.4
Nick vs Jeremy Kerman-0.4+0.5
+0.1-0.1
Joe vs Matt-0.3+0.3
-0.1+0.1
Ted vs Mitch+0.2-0.2
Marty vs Adam-0.1+0.1
+0.1-0.1

What If

Chances based on how well the Andrew finish out the regular season.   Explain

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTLplayoffs12345678910Count
94-0017.3%31410383050873,083
83-010.0022452223,634,810
72-02Out0187835,684,112
61-03Out66343,938,317
50-04Out16841,025,667
Total:1.0%0113820531615,155,989
Points
Chance Will Make Playoffs