How are these numbers calculated?

Big Games

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

Week of 4/21100.0*Chance in playoffs100.0*Average seed
Seongnam FC 2 Buriram 1 -14.1
-0.6
Guangzhou R&F 0 Gamba Osaka 5 -1.2
-0.1
Week of 5/5100.0*Chance in playoffs100.0*Average seed
Gamba Osaka 2 Seongnam FC 1 Out
-0.5
Buriram 5 Guangzhou R&F 0 +19.8
+0.4
Points
Chance Will Make Playoffs

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Week of 4/21100.0*Lottery seed
Seongnam FC 2 Buriram 1 +3.9
Naft Tehran 1 Pakhtakor 1 -0.1
Al-Sadd 1 Foolad 0 +0.1
Al-Shabab 0 Al-Ain 1 +0.1
Wanderers 1 Kashima 2 -0.1
Urawa 1 Suwon 2 +0.1
Bunyodkor 0 Al-Nassr 1 +0.1
FC Seoul 0 Evergrande 0 -0.1
Lekhwiya 3 Persepolis 0 +0.1
Shandong 3 Becamex 1 +0.1
Al-Ahli Saudi 2 Al-Ahli Dubai 1 +0.0
Tractor Sazi 1 Nasaf Qarshi 2 +0.0
Week of 5/5100.0*Lottery seed
Gamba Osaka 2 Seongnam FC 1 +2.8
Buriram 5 Guangzhou R&F 0 -2.8
Brisbane Roar 1 Urawa 2 -0.3
Evergrande 0 Wanderers 2 +0.2
Suwon 1 Beijing Guoan 1 +0.2
Pakhtakor 0 Al-Shabab 2 -0.2
Persepolis 2 Bunyodkor 1 +0.2
Al-Hilal 2 Al-Sadd 1 -0.1
Al-Ahli Dubai 3 Tractor Sazi 2 +0.1
Al-Nassr 1 Lekhwiya 3 -0.1
Motors 4 Shandong 1 +0.0
Kashima 2 FC Seoul 3 +0.0