Expression problem

Using this expression to get the percentage of two fields. The problem is
when both fields contain values of 0 then I get 'NaN%' .
How can I rewrite the expression to give 0%
=ROUND(((SUM(Fields!P2_OPENED.Value)/SUM(Fields!P2_CLOSED.Value)) *100),2) &
"%" & vbcrlf & ""
Thanks,=IIF(SUM(Fields!P2_CLOSED.Value) <> 0,
ROUND(((SUM(Fields!P2_OPENED.Value)/SUM(Fields!P2_CLOSED.Value)) *100),2) ,
0) &
"%" & vbcrlf & ""
"cheilig" wrote:
> Using this expression to get the percentage of two fields. The problem is
> when both fields contain values of 0 then I get 'NaN%' .
> How can I rewrite the expression to give 0%
> =ROUND(((SUM(Fields!P2_OPENED.Value)/SUM(Fields!P2_CLOSED.Value)) *100),2) &
> "%" & vbcrlf & ""
> Thanks,
>