How are these numbers calculated?

Big Games

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

Week of 11/20100.0*Chance in playoffs100.0*Average seed
Ordinary Gentle 79 bottom of the b 78 Out
-0.8
Keepernicks 93 Felixtowe Falcons 80 -0.2
Happy Romans 118 This Ain't Socc 146 +0.1
Handegg Handymen 63 Caw Caw 103 +0.1
Hophead Exiles 94 Motley's Crew 66 +0.2
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Felixtowe Falcons 103 bottom of the b 105 +0.9
This Ain't Socc 106 Motley's Crew 85 +0.2
Keepernicks 93 Handegg Handymen 119 +0.1
If winner is:HomeAway
Week of 12/4100.0*Chance in playoffs100.0*Average seed
bottom of the b vs This Ain't Socc+0.7-0.7
Felixtowe Falcons vs Happy Romans-0.2+0.2

What If

Chances based on how well the bottom of the b finish out the regular season.   Explain

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTLplayoffs12345678910Count
61-00Out43579,643,010
50-01Out2550259,642,930
Total:Out2141251219,285,940
Points
Chance Will Make Playoffs