How are these numbers calculated?

Big Games

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

Week of 4/16100.0*Chance in playoffs100.0*Average seed
Wizards 3 Hitmen 7 -14.8
-1.0
Blizzard 1 RedHawks 3 +5.5
+0.1
Tsunami 3 Hegemony 4 +3.2
+0.1
Sled Dogs 0 Badgers 3 (ot)-1.6
-0.2
Week of 4/23100.0*Chance in playoffs100.0*Average seed
Saints 8 Hitmen 1 -3.5
-0.3
Blizzard 2 Hegemony 4 +3.3
+0.1
Sled Dogs 4 RedHawks 7 +1.1
+0.0
Snowmen 4 Tsunami 3 (ot)-0.6
-0.2
Week of 4/30100.0*Chance in playoffs100.0*Average seed
Blizzard 3 Wizards 5 +35.7
+3.0
Saints 6 Snowmen 5 (ot)Out
-0.1
Tsunami 3 Badgers 2 (ot)Out
-0.3
Points
Chance Will Make Playoffs