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*Average seed
Grizzlies 2 Hawks 4 -0.0
If winner is:HomeAway
Week of 7/20100.0*Average seed
Penguins vs Vipers-1.1+0.5
Hawks vs Pucks-0.0+0.5
Indy vs Panthers+0.2-0.0

What If

Chances based on how well the Vipers finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPWL-OTTplayoffs123456789101112Count
1520-00In514921,609,409
1311-00In023502710,231,568
1102-00In17623288,839
Total:In3440169032,129,816
Points
Chance Will Make Playoffs