How are these numbers calculated?

Big Games

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

Week of 2/11100.0*Chance in playoffs100.0*Average seed
Springfield 7 Seven Oaks Blac 2 +1.5
-0.0
River East Whit 9 Seven Oaks Blac 2 +0.2
Dakota W 4 Dakota B 12 -0.1
-0.2
Week of 2/18100.0*Chance in playoffs100.0*Average seed
River East Blac 10 Seven Oaks Blac 1 In
FG Black 4 Dakota W 0 -0.2
River East Blac 6 Springfield 1 +0.2
Springfield 1 River East Whit 4 +0.1
Tuxedo 6 Dakota W 3 -0.1
Week of 2/25None
Points
Chance Will Make Playoffs