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 -5.1
-1.2
Justin 125.4 Anton 115.82 +1.3
+0.1
Dan O 130.52 Nick 149.48 -0.7
-0.1
Cassidy 116.06 Dan V 127.32 -0.5
-0.1
Matt 105.04 Tyler 110.04 +0.3
-0.0
Rob 133.1 Luke 15.6 -0.0
Week of 11/25100.0*Chance in playoffs100.0*Average seed
Matt 125.06 Nick 154.62 +3.0
-0.1
Rob 127.66 Drew 113.72 -2.8
-0.7
Dan O 125.37 Brian 110.18 +2.3
+0.3
Tyler 104.73 Cassidy 79.96 -0.3
-0.1
Dan V 121.68 Justin 111.91 -0.3
-0.1
Luke 58.52 Anton 164.02 -0.1
If winner is:HomeTieAway
Week of 12/2100.0*Chance in playoffs100.0*Average seed
Luke vs Drew-42.0InIn
-1.3-0.4+0.2
Dan V vs Anton+1.8+1.8-3.4
-0.1-0.1+0.2
Matt vs Brian-2.8+2.0+2.1
+0.3+0.4-0.3
Tyler vs Justin-0.1-0.1+0.6
Nick vs Cassidy-0.1-0.1+0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs123456789101112Count
81-0-0In0318483168,645,470
7.50-0-1In42581,566,805
70-1-053.1%5483898,227,941
Total:95.1%031644334178,440,216
Games Above .500
Chance Will Make Playoffs