How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Wednesday100.0*Chance in playoffs100.0*Average seed
Buffalo 1 NY Islanders 5 In
+0.3
Detroit 5 New Jersey 3 In
+1.1
Montreal 4 Carolina 3 (ot)-7.7
-0.5
Columbus 6 Pittsburgh 3 +4.4
+0.2
Thursday100.0*Chance in playoffs100.0*Average seed
Montreal 2 Tampa Bay 1 (ot)-1.1
FridayNone
Points
Chance Will Make Playoffs