Rob -
You have to somehow provide the data for the chart. Why can't you add a column?
Could you put it in a different part of the sheet (or a different sheet) so it
doesn't mess up your nicely formatted worksheet?
- Jon
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Jon Peltier, Microsoft Excel MVP
Peltier Technical Services
Tutorials and Custom Solutions
http://PeltierTech.com/
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robhargreaves wrote:
> Hi Thanks a lot for your reply
>
> The method you propose does work well. But I need to do it without
> adding columns to take the difference. Is it possible to do it this
> way?
>
> Thanks again
>
> Rob
>
>