Insert the following Perl Script where you want the currency symbol to appear ...
[%Begin Unverified Perl
my $Currency_Insert="";
if(VALUE("LocationQ")==1)
{
$Currency_Insert="$";
}
else
{
$Currency_Insert="€";
}
return $Currency_Insert;
End Unverified%]
Change "LocationQ" to your previous question name.
Also note I have assumed the "$" symbol is to be displayed if the previous question is "1". So you may need to change the condition in the Perl Script depending on the previous question list / definitions?