How are these numbers calculated?

Big Games

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

Week of 4/8100.0*Chance in playoffs100.0*Average seed
Swarm 17 Mammoth 10 +7.9
+0.3
Bandits 14 Knighthawks 12 +3.7
+0.1
Roughnecks 16 Stealth 12 -3.6
Black Wolves 14 Rush 13 -0.7
Rock 10 Black Wolves 14 +0.7
+0.1
Week of 4/15100.0*Chance in playoffs100.0*Average seed
Rock 12 Bandits 9 -0.2
-0.1
Bandits 14 Rock 8 +0.1
If winner is:HomeAway
Stealth vs Roughnecks+8.6-8.6
+0.3-0.3

What If

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

100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789Count
92-0In25751,607,707
81-175.0%4431253,208,550
70-234.43458261,605,693
Total:71.1%6412427026,421,950
Games Above .500
Chance Will Make Playoffs