How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
Mike 99 John 97 -16.5
-0.8
Finkle 81 Todd 110 +7.3
+0.1
Dylan 62 Kyle 111 +0.6
+0.1
Ant 68 Zukie 54 -0.3
-0.1
James 112 Adam 73 +0.3
+0.1
Skud 114 Chud 73 -0.2
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Kyle 93 John 84 -7.8
-0.3
Mike 109 Ant 85 -7.1
-0.1
Finkle 89 Skud 112 -2.7
Zukie 105 Dylan 76 +1.8
+0.2
Chud 86 Adam 120 -0.4
-0.0
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
John vs Ant+38.5-28.8
+0.9-0.6
Adam vs Skud+14.0-18.7
+0.2-0.3

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
71-084.2%037471625,283,823
60-116.917384633,860,369
Total:45.7%01630282659,144,192
Games Above .500
Chance Will Make Playoffs