How are these numbers calculated?

Big Games

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

Thursday100.0*Average seed
St. Catharines 5 Hamilton Hub Tigers 4 -0.1
Saturday100.0*Average seed
Hamilton Hub Tigers 5 Cambridge 7 +0.0
Sunday100.0*Average seed
Cambridge 1 St. Catharines 5 -0.8
Games Above .500
Chance Will Make Playoffs