Enter your benchmark figure in a cell. This will be your y value.
Add a suitable x value in the cell to the left of your y value.
Plot these as a new series and change the chart type to x-y. (You may need
to change it's axis back to primary.)
Add an x error bar extending to the right, format the error bar.
You can smarten it up by hiding the data point.
Add a data point to show the y value.
Let me know if you want an example. I use these all the time.
Dave
http://peltiertech.com/Excel/Charts/AddLineHorzErrBar.html
- Jon
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Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
Peltier Technical Services, Inc. - http://PeltierTech.com
_______
"Dave Curtis" <d...@lgcnospam.co.uk> wrote in message
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