I realize this is a bit old, but it appears that the 'answer' is -($#.##) ??? I was looking for a clear -$ -$ for non accounting here, but this struck me as odd.
I agree with the localization 'answer' and RED as not inherent to 'negativity' as well. But generally, (aside from the numeric and decimal placeholder), a set of () in finance/accounting denotes a negative number.
This holds true in [North] America, as well as [Europe] (at least France, dont j'en sais un peu, donc je dirais que c'est probablement également la même partout pour la comptabilité).
Thus I have to strongly concur with @VirtuosiMedia you are creating a CONFUSING display.
With both a - and (), you are using TWO formats.
Use only one or the other.
When I see both used together, I immediately think
1) Bad formatting
2) Double negative (...equals a positive number)...