How are these numbers calculated?

Big Games

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

Week of 2/18100.0*Chance in playoffs100.0*Average seed
Pirates 6 BarDown 5 -0.6
-0.3
LTCNEBlackhawks 1 MadButchers 0 -0.4
+0.0
Washups 3 ElectricAvenue 6 +0.2
-0.0
Week of 2/25100.0*Chance in playoffs100.0*Average seed
BarDown 5 MadButchers 9 -3.1
-0.3
LTCNEBlackhawks 0 NESHLNorth 1 +2.3
+0.1
ElectricAvenue 11 Washups 6 +0.1
-0.0
Pirates 4 CougarHunters 0 -0.1

What If

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

100100100100100100100100100100
If finish:Chance inChowderChance will finish regular season at seed
TPWL-OTTplayoffsCup12345678910Count
2320-00InNo55936306,753
2210-01InNo14654162,100
2111-00InNo015832845,641
00-02InNo01583121,312
2001-01InNo77816222,674
1902-0099.6%No54450582,008
Total:99.9%No119661502,140,488
Points
Chance Will Make Playoffs