How are these numbers calculated?

Big Games

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

Week of 11/23100.0*Chance in playoffs100.0*Average seed
Fitz 54 Kyle 41 +13.8
+0.6
Zach 36 Bill 46 +4.5
+0.1
Daryll 69 Yarroch 54 +4.3
+0.2
Brandon 60 Chris 37 +3.7
+0.1
Babs 58 Jason 60 +3.1
+0.3
Jake 54 Josh 45 +1.1
+0.0
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Fitz 53 Josh 79 -12.6
-0.9
Chris 64 Jason 47 -6.6
-0.1
Babs 51 Daryll 76 +5.1
+0.3
Zach 61 Yarroch 30 -1.7
Jake 63 Bill 34 +0.1
If winner is:HomeTieAway
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Fitz vs BillIn-27.0-28.9
+1.6-1.1-1.1
Chris vs Kyle-18.2+25.4+38.8
-0.2+0.2+0.4
Babs vs Zach+0.2-16.8+0.3
+0.0-0.5+0.0
Daryll vs Jason+0.0-0.2-0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456789101112Count
141-0-0In10028,707,107
130-0-133.4%132671,020,769
120-1-031.53267138,421,124
Total:60.4%4201839168,149,000
Games Above .500
Chance Will Make Playoffs