How much are points worth percentage-wise?

[MinisterEric]

I have a family member that I have been taking bets with for years and I've made literally thousands. We don't charge vig, but I constantly move the lines in my favor and he rarely fails to bite. We're talking the typical "chalk and the over" fish. So my question is, in the NFL, say Team A is listed at -7, and I move it to -9. How much are those points "worth" by percentage? My estimation is one point is probably worth about 2% in my favor taking a 50/50 bet and moving it to 51/49 in my favor, 2 points 4% 52/48, etc.

[sweethook]

your way off , and your killing the guy .. omg

[KVB]

your way off , and your killing the guy .. omg

[KVB]

https://www.sportsbookreview.com/picks/tools/half-point-calculator/

[ChuckyTheGoat]

Minister Eric:

*Is it right to take advantage of your fellow man? What would Jesus do?

Jesus would take the money and run! Would throw a bacchanalian party w/ his apostles.