How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Chance in playoffs100.0*Average seed
Drew 98.98 Brian 126.48 +15.5
+1.2
Justin 125.4 Anton 115.82 +2.8
+0.1
Cassidy 116.06 Dan V 127.32 -2.2
-0.1
Matt 105.04 Tyler 110.04 -0.7
-0.0
Dan O 130.52 Nick 149.48 -0.3
-0.1
Rob 133.1 Luke 15.6 -0.1
Week of 11/25100.0*Chance in playoffs100.0*Average seed
Dan O 125.37 Brian 110.18 -12.7
-1.0
Tyler 104.73 Cassidy 79.96 -2.4
-0.2
Rob 127.66 Drew 113.72 +2.1
+0.1
Luke 58.52 Anton 164.02 -1.8
Dan V 121.68 Justin 111.91 -1.3
-0.2
Matt 125.06 Nick 154.62 +1.0
-0.1
If winner is:HomeTieAway
Week of 12/2100.0*Chance in playoffs100.0*Average seed
Matt vs Brian-32.6InIn
-1.5-0.2+1.5
Luke vs Drew+10.5-10.1-10.1
+0.3-0.1-0.3
Dan V vs Anton+7.0+7.0-7.3
Tyler vs Justin-0.2-0.2+0.2
Nick vs Cassidy-0.2-0.2+0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs123456789101112Count
81-0-0In8283922312,604,696
7.50-0-1In5050512,318
70-1-036.0%729442012,600,930
Total:68.6%414191517221025,717,944
Games Above .500
Chance Will Make Playoffs