How are these numbers calculated?

Big Games

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

Week of 8/22100.0*Chance in playoffs100.0*Average seed
ORI 19 HOW 26 +8.3
+0.4
BOM 14 TAR 9 +0.1
BMC 21 ECC 26 -0.1
Week of 8/30100.0*Chance in playoffs100.0*Average seed
TAR 10 HOW 31 In
+0.5
BOM 7 ORI 0 +0.1
JC 30 ECC 18 +0.1
If winner is:HomeAway
Week of 9/5100.0*Chance in playoffs100.0*Average seed
ECC vs HOW-0.5+0.5

What If

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

100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs1234567Count
51-0-0In10025,246,957
40-1-0In10025,250,220
Total:In505050,497,177
Games Above .500
Chance Will Make Playoffs