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 +12.5
No
+0.8
DEM 82.78 NR 32.2 +3.7
+0.2
+0.2
WITM 54.5 SS 64.96 +1.0
+0.2
+0.0
IS 97.1 CC 58.1 +0.1
-0.4
-0.1
PF 87.98 FRAT 67.2 -0.1
-0.0
DYE 81.68 OW 69.96 +0.1
-0.1
If winner is:HomeAway
Sunday, 1/12100.0*Chance in playoffs100.0*Loser's Bracket100.0*Average seed
BBR vs WITMIn-1.8
+0.4-0.7
NR vs DYE-0.8+0.8
DEM vs IS-0.8+0.4
+0.2-0.1
CC vs SF+0.6-0.5
OW vs PF+0.2-0.1
FRAT vs SS+0.1-0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seedLoser's
TWW-Lplayoffs123456789101112BracketCount
92-0In2254924No10,640,646
81-1In11782No27,665,891
70-295.9%13633264No11,832,871
Total:99.0%062059861No50,139,408
Games Above .500
Chance Will Make Playoffs