I am looking at MLB totals and getting a litle confused, I hope someone can help me, I would really appreciate it.

Example assuming -110 margin

Giants U8 -110

so that means the line is for like a decimal purpose that is 8.00 right?

now if it was Giants U8 -120 what would it be decimal wise?

say its 8

-110 is 8.00

-120 ?

-130 ?

where is the 7.75 more or less I assume its not perfect.