I don't know if you can do this but I am trying to figure out how to setup a worksheet so that when I add new data to a range that I'm using to create my chart it automatically adjusts to add the new entry but also minus 1 of the previous entries. For example I only want it to calculate the last 10 entries although I might have 100 entries on the page from previous dates. I know that you can add entries and manually adjust the range so that a chart will automatically update but I want the range to automatically update/use the last 10 entries on the worksheet every time I add a new entry. I hope this makes since. HELP!