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
Boulianne 6 Roy 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
Bourdeau vs Boulianne-49.1+6.5
-0.8+0.1
Montpetit vs Roy-32.9+4.4
-0.3+0.0

What If

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

100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTL-OTplayoffs1234Count
61-00-095.7%2944128,851,287
30-01-040.140263417,173,765
Total:89.2%18874146,025,052
Points
Chance Will Make Playoffs