How are these numbers calculated?

Big Games

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

Week of 4/23100.0*Chance in playoffs100.0*Average seed
4th 7 Mafia 5 +20.4
+0.9
Butt 8 Four 6 -2.4
-0.1
OBC 16 Puckin 6 +2.2
+0.1
Disco 10 Yeo 3 -1.2
Jazz 3 Glory 10 -0.8
If winner is:HomeAway
Week of 4/30100.0*Chance in playoffs100.0*Average seed
Puckin vs 4th-22.3+22.3
-0.8+0.8
Yeo vs Butt+4.6-4.6
+0.1-0.1
Mafia vs Disco-0.9+0.9
Four vs Jazz-0.8+0.8
Glory vs OBC-0.7+0.7
-0.1+0.1

What If

Chances based on how well the 4th finish out the regular season.   Explain

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
84-0In266213805,512
73-199.8%13558503,212,994
62-284.32453814204,816,309
51-322.832038291003,211,198
40-40.20422402850807,927
Total:68.5%2133320159520012,853,940
Games Above .500
Chance Will Make Playoffs