How are these numbers calculated?

Big Games

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

Week of 2/29100.0*Chance in playoffs100.0*Average seed
National 20 Crottes 18 +9.8
+0.5
Bizoune 14 Loonies 17 -5.8
-0.1
Mile-Enders 12 Titans 13 -5.6
Week of 3/7100.0*Chance in playoffs100.0*Average seed
Calumets 16 Titans 20 -5.9
-0.3
National 15 Balls 5 +4.2
+0.8
Crew 16 Loonies 12 +1.7
+0.1
Mile-Enders 12 Bizoune 19 +1.1
If winner is:HomeHome OTHome SOAway SOAway OTAway
Week of 3/14100.0*Chance in playoffs100.0*Average seed
National vs Crew+0.5+0.5+0.5-0.3-0.3-0.4
Crottes vs Titans+0.1+0.1+0.1-0.4-0.4-0.4
Calumets vs Bizoune+0.2+0.1+0.1-0.3-0.3-0.2
Mile-Enders vs Loonies-0.1-0.1-0.1+0.1+0.1+0.1

What If

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

100100100100100100100100100100
If finish:Chance inPresChance will finish regular season at seed
TPW-L-TplayoffsTrophy12345678910Count
231-0-0InNo7751844,666,467
210-1-0InNo235421255,642,553
Total:InNo34638121100,309,020
Games Above .500
Chance Will Make Playoffs