How are these numbers calculated?

Big Games

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

Friday100.0*Average seed
Manchester 2 Portland 1 -0.3
W-B/Scranton 2 Albany 4 +0.2
St John's 5 Springfield 2 -0.1
Saturday100.0*Average seed
Portland 2 Providence 3 (ot)+0.4
W-B/Scranton 4 Norfolk 2 -0.2
St John's 0 Springfield 1 (so)+0.2
Hershey 1 Lehigh 2 (so)+0.1
Sunday100.0*Average seed
Lehigh 2 W-B/Scranton 3 (so)-0.2
Worcester 5 Portland 4 (so)+0.2
Points
Chance Will Make Playoffs