How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 2/23100.0*Average seed
Michigan Stags 29 Alberta Oilers 47.4 +0.4
Charlestown Chi 33.4 Houston Aeros 37.6 +0.1
Winnipeg Jets 31.8 Phoenix Roadrun 63 -0.1
Week of 3/2100.0*Average seed
Alberta Oilers 25.4 Philadelphia Bl 44.4 -0.3
Denver Spurs 34.4 Cleveland Crusa 51.6 -0.1
Phoenix Roadrun 19.6 Toronto Toros 60.6 +0.1
Indianapolis Ra 48.8 Winnipeg Jets 29 +0.1
Quebec Nordiques 54.6 Charlestown Chi 46 +0.1
Week of 3/9100.0*Average seed
Reagan's Whaler 35.4 Alberta Oilers 48.6 +0.6
Houston Aeros 38.4 Phoenix Roadrun 39 -0.3
Charlestown Chi 44.6 Winnipeg Jets 30 +0.2
Points
Chance Will Make Playoffs