How are these numbers calculated?

Big Games

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

Week of 11/26100.0*Chance in playoffs100.0*Average seed
James 144.86 Rob 132.8 -12.2
-0.9
Ruski 140.04 Darth 99.58 +3.4
+0.1
Meg 116.42 Jackie 123.12 -1.7
-0.1
Ortiz 77.96 Topper 84.74 -1.4
-0.1
CoP 113.56 Mel 142.78 -0.7
-0.1
Week of 12/3100.0*Chance in playoffs100.0*Average seed
Moff 124.72 Jackie 124.18 +11.4
+0.3
Ortiz 117.8 Rob 122.84 +9.1
+0.3
Ruski 135.56 Topper 97.26 +8.6
+0.3
David 65.82 Darth 103.22 -0.8
-0.0
James 129.84 Mel 135.54 -0.3
If winner is:HomeAway
Week of 12/10100.0*Chance in playoffs100.0*Average seed
Ruski vs Rob-24.2In
-1.2+0.5
David vs TopperIn-2.5
+0.2-0.0
Darth vs Jackie+2.6-2.6
CoP vs James+2.0-0.4
+0.4-0.1
Ortiz vs Mel+0.4-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
101-0In5494657,314,915
90-165.2%223403524,984,477
Total:89.4%33539121182,299,392
Games Above .500
Chance Will Make Playoffs