How are these numbers calculated?

Big Games

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

Week of 12/4100.0*Chance in playoffs100.0*Average seed
BrunoB 83.4 Party Bus 73.24 -18.5
-1.2
B3rT 69.14 Arrow's Team 88.48 -0.7
Nacho Vidal 83.56 Fab's Team 105.8 -0.5
Le chat 60.74 Monday Morning QB 86.22 -0.3
-0.1
Rocco 86.8 Frank the Tank 71.26 -0.1
Raider Crusader 83.22 Sly49ers 104.42 -0.1
BILLS BILLS BILLS 104.84 guywwe's Best T 68.68 +0.1
Week of 12/11100.0*Chance in playoffs100.0*Average seed
B3rT 98.92 Raider Crusader 106.18 -5.8
-0.2
Jordan Pete's T 55 Frank the Tank 90 -2.2
-0.1
Rocco 73.66 Maks 60.78 +1.7
+0.1
Sly49ers 75 Arrow's Team 100 -0.9
Fab's Team 48.9 Monday Morning QB 76.5 +0.3
If winner is:HomeAway
BILLS BILLS BILLS vs Party Bus-18.2In
-1.1+1.1
Nacho Vidal vs Le chat-4.9+4.9
-0.2+0.2

What If

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

100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213141516Count
81-0In10002,085,812
70-163.7%2241362,084,924
Total:81.9%501121184,170,736
Games Above .500
Chance Will Make Playoffs