drawing an error band on a line chart

Hi,

I have a line chart and I want to make two horizontal lines at +3%-0.5% and +3%+0.5%. How do I do this in excel 2013? I keep seeing the trendline option. Can I modify that.

Thanks
camper12Asked:
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Glenn RayExcel VBA DeveloperCommented:
Would these two horizontal lines be at 2.5% and 3.5%, respectively AND is the line plot a percentage value as well?

If so, you would just add two new series to your existing data with these values as the only series values.
error lines
This data could be in hidden columns for separated from your main data so as not to be interfering. See the example workbook.

Regards,
-Glenn
EE-Q28569677.xlsx
0

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