How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Chance in playoffs100.0*Average seed
Babs 60 Brandon 105 +15.4
+1.3
Jake 61 Kyle 24 -1.3
-0.0
Jason 61 Yarroch 63 +1.3
Josh 73 Chris 57 -0.2
Zach 77 Bill 36 -0.2
Darryl 88 Stephen 61 +0.2
+0.2
Week of 11/26100.0*Chance in playoffs100.0*Average seed
Brandon 60 Zach 45 In
+0.9
Darryl 62 Bill 55 -3.0
-0.1
Kyle 55 Jason 50 +2.6
+0.0
Jake 75 Chris 32 -1.9
-0.1
Josh 60 Yarroch 48 -0.5
Babs 65 Stephen 50 +0.3
+0.3
If winner is:HomeHome OTTieAway OTAway
Week of 12/3100.0*Chance in playoffs100.0*Average seed
Brandon vs Stephen+0.9+0.6+0.6-0.8-0.9
Darryl vs Zach-0.2-0.3+0.2+0.2+0.2
Kyle vs Yarroch+0.2+0.2+0.2-0.2-0.3
Jake vs Josh+0.1+0.1+0.1+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456789101112Count
181-0-0In75259,454,916
170-0-1In4951287,055
160-1-0In02650249,453,525
Total:In3826251219,195,496
Games Above .500
Chance Will Make Playoffs