How are these numbers calculated?

Big Games

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

Week of 7/13100.0*Last Place100.0*Average seed
MAROON 2 AZALEA 13 No
+1.3
MILITARY 7 INDIGO 7 +5.3
-0.3
BLACK 9 CAROLINA 5 +2.7
-0.3
ORANGE 9 SKY 10 -1.6
+0.1
PURPLE 6 LIME 16 -1.5
+0.2
WHITE 6 ROYAL 13 -0.7
Week of 7/20100.0*Last Place100.0*Average seed
AZALEA 0 INDIGO 7 -1.7
PURPLE 10 MAROON 3 -0.4
CAROLINA 6 ORANGE 13 -0.3
SKY 12 MILITARY 4 +0.1
LIME 17 ROYAL 5 +0.1
BLACK 7 WHITE 21 +0.1
PURPLE 7 GOLD 18 +0.0
Games Above .500
Chance Will Make Playoffs