How are these numbers calculated?

Big Games

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

Week of 2/7100.0*Average seed
Blackfoot 0 Trails West White 4 -0.7
Springbank 4 Blackfoot 0 -0.5
McKnight 0 Glenlake 4 +0.1
Bow Valley 1 Bow River 6 +0.1
Trails West Red 3 Bow Valley 0 +0.1
Simons Valley 3 Northwest 6 +0.1
Week of 2/13100.0*Average seed
Blackfoot 4 Simons Valley 1 +0.7
Knights White 2 Blackfoot 2 -0.3
Southwest 4 Blackfoot 1 -0.3
Trails West White 7 McKnight 5 +0.2
Simons Valley 2 Crowfoot 8 +0.1
McKnight 1 Trails West Red 6 +0.1
Knights Grey 2 Bow Valley 1 +0.1
Glenlake 11 Simons Valley 1 +0.1
Week of 2/20100.0*Average seed
Simons Valley 2 McKnight 5 -0.5
Blackfoot 6 Bow Valley 6 -0.2
Games Above .500
Chance Will Make Playoffs