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
Simons Valley 3 Northwest 6 -0.5
Bow Valley 1 Bow River 6 +0.1
Trails West Red 3 Bow Valley 0 +0.1
Springbank 4 Blackfoot 0 +0.1
McKnight 0 Glenlake 4 +0.1
Blackfoot 0 Trails West White 4 +0.1
Knights Grey 1 Knights White 4 +0.0
Week of 2/13100.0*Average seed
Blackfoot 4 Simons Valley 1 -0.7
Glenlake 11 Simons Valley 1 -0.4
Simons Valley 2 Crowfoot 8 -0.4
Trails West White 7 McKnight 5 +0.1
Knights White 2 Blackfoot 2 +0.1
Knights Grey 2 Bow Valley 1 +0.1
McKnight 1 Trails West Red 6 +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