How are these numbers calculated?

Big Games

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

Week of 3/24100.0*Chance in playoffs100.0*Average seed
Mammoth 14 Rush 11 +5.1
+0.6
Rush 13 Roughnecks 10 +0.8
Swarm 11 Rock 12 -0.7
-0.1
Rock 13 Stealth 7 +0.3
Roughnecks 18 Black Wolves 13 +0.2
+0.1
Knighthawks 11 Bandits 10 +0.2
If winner is:HomeAway
Week of 3/31100.0*Chance in playoffs100.0*Average seed
Swarm vs Mammoth-1.8+2.1
-0.6+0.7
Stealth vs Rock-0.5+0.4
+0.1-0.1
Bandits vs Rush-0.4+0.4
+0.1-0.1
Black Wolves vs Rock-0.4+0.3
+0.1-0.1
Knighthawks vs Roughnecks-0.1+0.1

What If

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

100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789Count
124-0In85151076,570,735
113-1In2348263282,697,009
102-2In114483620387,245,253
91-399.2%00750358100232,141,123
80-459.20419373010151,631,614
Total:97.8%13192726942101,030,285,734
Games Above .500
Chance Will Make Playoffs