How do i figure out the line for an underdog based off the price for the favorite and vice versa? Meaning, if i have a favorite who is -230, how do i find the line for the underdog? If i have an underdog with the line +154 how do i find the price for the favorite? I need this for like a spreadsheet so it would have to be a simple formula.
-230 favorite = +? underdog
+166 underdog = -? favorite
what is the formula?
Thanks