How are these numbers calculated?

Big Games

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

If winner is:HomeAway
Week of 4/1100.0*Chance in playoffs100.0*Average seed
McLellanDay vs VirginTerrorist+8.8-11.9
+1.0-1.3
IanPJgay vs WidemanMoney-0.5+0.9
aki butthole vs Quack Attack-0.6+0.8
CookeUmburger vs DevilShi-0.7+0.5
-0.1+0.0
MieleMiele vs KassianGreen+0.7-0.5
Fehr Shake vs TY Bettman-0.7+0.4
-0.1+0.0
SchwartzBurns vs Rum Hamrlik+0.3-0.3
SeminEnnis vs Greg's Goodies+0.2-0.3
StreitWhite vs Crazy Pizza+0.2-0.1
UncleDaddy vs FaulkYourself+0.1-0.1

What If

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

100100100100100100100100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs1234567891011121314151617181920Count
01-0-038.7%0136777776666777531016,243,941
0-1-018.03111234456678911121162011,996,499
Total:29.9%1124556666667899741028,240,440
Points
Chance Will Make Playoffs