How are these numbers calculated?

Big Games

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

Week of 2/17100.0*Chance in playoffs100.0*Average seed
Rush 8 Mammoth 7 -5.9
-0.5
Swarm 15 Knighthawks 9 +1.0
Knighthawks 6 Rock 10 +0.9
Black Wolves 15 Bandits 16 +0.8
Roughnecks 10 Stealth 13 -0.6
Bandits 11 Black Wolves 14 -0.3
If winner is:HomeAway
Week of 2/25100.0*Chance in playoffs100.0*Average seed
Black Wolves vs Mammoth-10.3+11.1
-0.6+0.6
Bandits vs Rock-1.3+1.1
Rush vs Roughnecks+0.8-1.1
Stealth vs Knighthawks-0.3+0.4

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
1410-0In95533,351
139-1In732610257,432
128-2In355114101,256,934
117-3In7374512003,615,106
106-4100.0%06364711106,797,631
95-598.2004344416208,705,691
84-671.004254224507,714,295
73-720.50218423264,650,542
62-81.4011649341,835,428
51-90.0012673425,432
40-10Out069454,000
Total:76.3%3713201916128435,345,842
Games Above .500
Chance Will Make Playoffs