How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 10/6100.0*Chance in playoffs100.0*Lower bracket100.0*Average seed
Northview 0 Mt Pisgah 6 +0.8
-0.8
+0.1
Kings Ridge 22 Dawson-Red 0 +0.1
-0.1
+0.0
Dawson-Black 34 JC-Gold 0 +0.0
If winner is:HomeTieAway
Week of 10/13100.0*Chance in playoffs100.0*Lower bracket100.0*Average seed
Druid Hills vs Centennial-1.1+3.6+59.7
+1.1-3.6-59.7
-0.1+0.9+1.9
Lambert vs Dawson-Red+0.1-1.2-1.1
-0.1+1.2+1.1
+0.0-0.6-0.6
Northview vs JC-Gold+0.4-0.6-0.8
-0.4+0.6+0.8
-0.0-0.1+0.0
JC-Red vs Dawson-Black-0.8-0.1+0.0
+0.8+0.1-0.0
-0.5-0.1+0.0
Forsyth vs Mt Pisgah+0.0-0.0-0.2

What If

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

100100100100100100100100100100100
If finish:Chance inPromoteChance will finish regular season at seedLower
TWW-L-Tplayoffsto D11234567891011bracketCount
4.52-0-199.7%No0396100.3%2,367
41-0-280.8No18019019.28,011
3.51-1-155.2No055414044.8150,748
30-0-258.2No5840241.812,335
2.50-1-11.5No148482098.5460,717
20-2-0OutNo6513850Yes4,311,948
Total:2.1%No0021149335097.9%4,946,126
Games Above .500
Chance Will Make Playoffs