Hi
Try this :
Local Numbervar a1:=round({CatTimeWise.tarSale},1) ;
Local NumberVar a2:=round({CatTimeWise.actSale},1) ;
if ({CatTimeWise.tarSale}= 0 AND {CatTimeWise.actSale})= 0
or ( isnull({CatTimeWise.tarSale}) AND isnull({CatTimeWise.actSale})) then '-'
else
If a1> 0 Then
totext(round((a2-a1)/a1*100,1),1)
Else "_"
-Sastry