How are these numbers calculated?

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 6/30100.0*Lottery seed
Cheetahs 34 Stormers 40 -0.2
Sharks 17 Bulls 30 +0.2
Jaguares 30 Kings 31 +0.1
Week of 7/7100.0*Lottery seed
Force 31 Rebels 22 -0.8
Reds 16 Brumbies 15 +0.2
Bulls 30 Kings 31 -0.1
Waratahs 27 Jaguares 40 +0.1
Week of 7/14100.0*Lottery seed
Force 40 Waratahs 11 -0.7
Highlanders 40 Reds 17 -0.3
Bulls 10 Stormers 27 -0.3
Points
Chance Will Make Playoffs