How are these numbers calculated?

Big Games

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

ThursdayNone
Friday100.0*Chance in playoffs100.0*Average seed
Norfolk 3 Hershey 1 In
-0.1
Providence 2 Manchester 1 (ot)In
+0.5
Binghamton 5 W-B/Scranton 4 +0.0
Saturday100.0*Chance in playoffs100.0*Average seed
Worcester 2 Providence 0 -0.8
Utica 2 W-B/Scranton 0 +0.5
Albany 5 Springfield 2 -0.4
Binghamton 4 Norfolk 2 +0.1
Points
Chance Will Make Playoffs