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*Chance wins title100.0*Champion100.0*Average seed
BBC 0 Pakistani House 1 -20.1
-20.1
-1.2
Average Gang 2 Sammy 0 -11.7
-11.7
-0.1
JOHN CENA 1 Honorable Mention 1 *+1.8
*+1.8
+0.3
Just Send It 1 BME 0 -0.1
Smooth Brain 2 Slippery Shafts 0 +0.1
Week of 3/1100.0*Chance wins title100.0*Champion100.0*Average seed
Slippery Shafts 1 BBC 2 +1.3
Average Gang 3 Smooth Brain 0 +0.3
BME 0 Sammy 1 -0.1

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

Games Above .500
Chance Will Win Championship