Refresh my memory, how do I make a -1 bet

[PanamaCityKing]

Last year don't think I did any of these and now that I want to make a few -1 bets I forget the formula.
Thanks for any help.
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[Mr.]

http://sportsobjective.com/wordpress/?page_id=3167

 

[PanamaCityKing]

Thanks my man.

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