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
Josh 73 Chris 57 +13.8
+1.3
Jake 61 Kyle 24 -1.7
-0.2
Jason 61 Yarroch 63 +1.3
Darryl 88 Stephen 61 +0.7
+0.0
Babs 60 Brandon 105 -0.3
-0.1
Week of 11/26100.0*Chance in playoffs100.0*Average seed
Josh 60 Yarroch 48 In
+1.0
Kyle 55 Jason 50 +3.0
+0.1
Babs 65 Stephen 50 +1.6
+0.1
Darryl 62 Bill 55 -1.3
-0.1
Brandon 60 Zach 45 +0.7
-0.1
Jake 75 Chris 32 -0.5
-0.3
If winner is:HomeHome OTTieAway OTAway
Week of 12/3100.0*Chance in playoffs100.0*Average seed
Jake vs Josh-1.8+0.5+1.4+1.5+1.7
Brandon vs Stephen-0.2+0.1+0.1+0.1+0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456789101112Count
181-0-0In76249,455,877
170-0-1In5149287,365
160-1-0In2552869,452,254
Total:In3915314319,195,496
Games Above .500
Chance Will Make Playoffs