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
Butt 8 Four 6 +11.9
+0.9
OBC 16 Puckin 6 +2.3
+0.1
Disco 10 Yeo 3 -0.9
Jazz 3 Glory 10 +0.4
+0.1
4th 7 Mafia 5 -0.3
If winner is:HomeAway
Week of 4/30100.0*Chance in playoffs100.0*Average seed
Yeo vs Butt-14.0+14.0
-0.7+0.7
Mafia vs Disco-2.6+2.6
-0.1+0.1
Puckin vs 4th+2.5-2.5
Four vs Jazz+0.6-0.6
+0.1-0.1
Glory vs OBC+0.2-0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
74-099.3%0256591806,798
63-180.41394117303,212,658
52-219.731738321004,818,500
41-30.103234327403,208,856
30-4Out04334221807,128
Total:33.7%02151719181594112,853,940
Games Above .500
Chance Will Make Playoffs