Is it possible to use format-currency() inside set_variable()?

Question

Hi gurus,
I have a few numbers to sum up for the report, and I want to round the numbers according to the currency before they are summed up. What is the best way to achieve this?
The way I can think of is:
To around the number I can use <?format-currency:VALUE; CURRENCY; 'false'?> in the template. Then initialize a variable SUBVALUE=0 and then add each rounded numer to this variable:
<?xdoxslt:set_variable($_XDOCTX, 'SUBVALUE’, xdoxslt:get_variable($_XDOCTX, 'SUBVALUE’) + (format-currency:VALUE; CURRENCY; 'false'))?>
However, I'm getting error indicating that I can't use format-currency:VALUE inside set_variable() in this way...Am I using the function wrongly? Or is there another function that can achieve this?
Appreciate your help :)
Sophy

Answer 1

Hi Tim,
As you said, the reason that why I have to add after rounding is to avoid the 0.01 issue. Our PM requires the numbers shown in report to be mathematically correct, so if we add before rounding then we'll have sub-toatal and totals different by 0.01 or so.
And since I need to round the values according to the currency, I can't round it in the query...I have to use format-currency in the template to do the rounding.
Thanks :)
Sophy