How are these numbers calculated?

Big Games

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

Sunday100.0*Average seed
Cov 4 Not 3 -0.3
Bel 4 Bra 3 (ot)+0.1
Dun 3 Fif 4 (so)+0.0
Saturday100.0*Average seed
Bel 5 Not 3 -0.3
Dun 3 Edi 1 -0.1
Bra 4 Fif 5 (so)-0.0
If winner is:HomeHome OTHome SOAway SOAway OTAway
Sunday100.0*Average seed
Fif vs Bra+0.5+0.5+0.5-0.5-0.5-0.5

What If

Chances based on how well the Not finish out the regular season.   Explain

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTplayoffs12345678910Count
5700-0In505040,099,500
Total:In505040,099,500
Points
Chance Will Make Playoffs