1/2 game value

1/2 game value Hi guys. New member here. What is the value of a 1/2 game in regards to NFL season win totals. I ve got access to several books and the numbers fluctuate wildly! Just wondered if there was a mathematical formula for something like this. Thanks.Great site!
Ed, I believe this was discussed earlier. Look through the past threads.
It was discussed, but no answer was given. https://www.lvasportsboards.com/showthread.php?t=145
Didn't see any definitive answer.

Actually didnt see any answer at all!
See the thread I just brought to the front, "Fezzik pick, NC U/8.5 wins."
got it. thanks