How are these numbers calculated?

Big Games

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

Saturday, 1/11100.0*Chance in playoffs100.0*Loser's Bracket100.0*Average seed
SF 71.78 BBR 81.42 -21.1
+11.9
-1.3
WITM 54.5 SS 64.96 +2.6
-2.6
+0.2
DYE 81.68 OW 69.96 +2.0
-1.6
+0.1
DEM 82.78 NR 32.2 +0.6
-0.8
PF 87.98 FRAT 67.2 +0.2
IS 97.1 CC 58.1 -0.1
-0.9
-0.1
If winner is:HomeAway
Sunday, 1/12100.0*Chance in playoffs100.0*Loser's Bracket100.0*Average seed
CC vs SF-21.1+21.2
+24.1-24.1
-1.3+1.3
BBR vs WITM+3.9-3.9
-3.6+3.6
+0.2-0.2
OW vs PF-2.9+2.9
+4.8-4.8
-0.2+0.2
DEM vs IS+1.5-1.5
+0.2-0.2
+0.1-0.1
NR vs DYE-1.0+1.0
+0.2-0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seedLoser's
TWW-Lplayoffs123456789101112BracketCount
72-0In423721No3,859,330
61-132.4%72533249210.8%7,706,199
50-2Out617314694.33,861,199
Total:41.2%1622131614991129.0%15,426,728
Games Above .500
Chance Will Make Playoffs