How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Sunday100.0*Chance in playoffs100.0*Average seed
Car 7 Edi 2 +17.8
+0.5
She 3 Hul 2 +4.4
+0.2
Dun 3 Fif 4 (so)-2.7
-0.0
Cov 4 Not 3 -1.7
-0.1
Saturday100.0*Chance in playoffs100.0*Average seed
Bra 4 Fif 5 (so)-7.3
-0.1
She 2 Cov 0 +0.2
If winner is:HomeHome OTHome SOAway SOAway OTAway
Sunday100.0*Chance in playoffs100.0*Average seed
Cov vs Car-19.5-7.9-8.0InInIn
-1.0-0.8-0.8+0.2+0.2+1.2
Fif vs Bra-12.1-12.0-12.1-6.8-6.8In
-0.2-0.2-0.2-0.1-0.1+0.3
Hul vs She-12.1-12.0-12.0-6.8-6.8In
-0.2-0.2-0.2-0.1-0.1+0.3

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTplayoffs12345678910Count
5310-0In792120,046,248
5200-175.0%2550254,204,752
5101-063.416483715,848,500
Total:82.9%4019241740,099,500
Points
Chance Will Make Playoffs