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 2/2100.0*Lottery seed
Ezra 40 Westchester 56 -0.9
If winner is:HomeAway
Shaare T. vs North Shore+0.2-0.2
If winner is:HomeAway
Week of 2/9100.0*Lottery seed
Westchester vs TABC-0.7+0.7
Hillel vs Shaare T.-0.2+0.2

What If

100100100100100100100100100100100100100100100100100100100100
If finish:Chance will finish season at seed
TWW-L1234567891011121314151617181920
21-05050
10-11288
Total:253144
Games Above .500
Chance Will Make Playoffs