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
Detroit 5 New Jersey 3 In
+0.3
Columbus 6 Pittsburgh 3 -8.1
-0.6
Buffalo 1 NY Islanders 5 +5.8
+0.1
Montreal 4 Carolina 3 (ot)-0.0
ThursdayNone
Friday100.0*Chance in playoffs100.0*Average seed
Pittsburgh 2 Carolina 4 -0.4
Points
Chance Will Make Playoffs