Add Line for Series Group Total to chart

Have trend chart with lines for monthly costs for individual assets. I need
to add another line for the total each month. When I add a new Value to sum
the costs, I get duplicate lines on the chart. What am I doing wrong?
TIA
DeanIn your new Value set the following value:
= sum(Fields!Yourfield.Value, "DATASETNAME")
Hope this helps.
"Dean" <deanl144@.hotmail.com.nospam> escribió en el mensaje
news:uv2uapZEIHA.3548@.TK2MSFTNGP06.phx.gbl...
> Have trend chart with lines for monthly costs for individual assets. I
> need to add another line for the total each month. When I add a new Value
> to sum the costs, I get duplicate lines on the chart. What am I doing
> wrong?
> TIA
> Dean
>