How are these numbers calculated?

Big Games

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

Week of 11/21100.0*Chance in playoffs100.0*Odds of getting last100.0*Average seed
Cary McMichael 113 Roger Harman 82.5 +25.4
-5.3
+1.1
Brandon McMichael 84.8 Tom Reed 124 -2.0
+0.4
-0.1
Austin Harman 74.9 Alex Valley 132.3 -0.7
-1.7
+0.0
Aaron McMichael 40.3 James Quinly 117.6 +0.7
-0.1
Nick Treado 125.3 Trey Reed 71.7 -0.0
Week of 11/28100.0*Chance in playoffs100.0*Odds of getting last100.0*Average seed
Tom Reed 67.8 Cary McMichael 100.8 +24.7
+1.0
Roger Harman 107.1 Trey Reed 141 +7.7
+0.2
Alex Valley 116 Nick Treado 71 -2.9
-0.1
Aaron McMichael 116 Brandon McMichael 89.8 -1.6
-0.0
James Quinly 97.9 Austin Harman 74 -1.3
-0.2
If winner is:HomeTieAway
Week of 12/5100.0*Chance in playoffs100.0*Odds of getting last100.0*Average seed
Austin Harman vs Brandon McMichaelInIn-6.1
+0.3+0.3-0.3
Roger Harman vs Alex ValleyInIn-6.1
+0.1+0.1-0.1
Tom Reed vs Aaron McMichaelInIn-6.1
+0.2+0.7-0.2
Trey Reed vs Cary McMichael-6.0-5.9In
-0.8-0.8+0.8

What If

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

100100100100100100100100100100
If finish:Chance inOdds ofChance will finish regular season at seedOdds of
TPW-OTLTplayoffswinning championship12345678910getting lastCount
71-000InNo919No4,171,161
60-01087.9%No0385012No4,172,189
0-00188.0No0394912No8,190
Total:94.0%No4623256No8,351,540
Points
Chance Will Make Playoffs