How are these numbers calculated?

Big Games

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

Week of 4/19100.0*Chance in playoffs100.0*Average seed
Bourdeau 6 Montpetit 7 +23.0
+0.6
Boulianne 8 Montpetit 7 -22.9
-0.6
If winner is:HomeAway
Week of 4/27100.0*Chance in playoffs100.0*Average seed
Montpetit vs Roy+49.1-6.5
+0.8-0.1
Bourdeau vs Boulianne+32.9-4.4
+0.3-0.0

What If

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

100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTL-OTplayoffs1234Count
61-00-059.9%34264017,173,550
30-01-04.34942128,851,502
Total:10.8%47881146,025,052
Points
Chance Will Make Playoffs