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
49ers 133.7 geoffinitely 156.3 -18.4
-0.9
Wham 165.3 Forgotten 0 -3.7
-0.1
Bumbaugh 68.8 Miller 112.1 +1.9
+0.1
Olde 149.6 Gronk 130 -1.9
-0.1
Riley 72.9 Ford 124.8 -1.3
-0.1
Week of 11/24100.0*Chance in playoffs100.0*Average seed
49ers 90.5 Baste 76.9 +24.7
+0.8
Wham 91.9 geoffinitely 112.5 +8.8
+0.1
Be Like 112.3 Gronk 146.9 +4.7
+0.2
Olde 134.6 Ford 133.9 -1.9
-0.1
Bumbaugh 138.3 Forgotten 0 -0.1
If winner is:HomeAway
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Gronk vs 49ers-25.3In
-1.1+0.9
Baste vs Wham+11.2-11.1
geoffinitely vs Bumbaugh-6.4+6.2
-0.1+0.1
Ford vs Be Like+3.9-3.8
+0.1-0.1
Riley vs Forgotten-0.1+0.2
Olde vs Miller-0.1+0.1

What If

Chances based on how well the 49ers finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-Lplayoffs123456789101112Count
01-0In151527361730,842,199
0-153.4%1241361025,940,281
Total:78.7%03815252817556,782,480
Points
Chance Will Make Playoffs