Make Line Chart From 3 SeriesJan 8, 2010
I have data:
Jan Feb Mar Apr May
2009years 56 45 42 50 62 - series1
2010years 48 47 45 48 55 - series2
I need make line chart from 3 series. First two are series1 and series2. Third is percent change between 2010 and 2009 years every month (series3). First two are easy, but third is very difficult for me, becouse I haven't row with percent change and I can't haven't it in my exercise.
How can I make it without new row with percent change?
I tried it with Data Source in chart, also formula in Name Manager, but it doesn't succeed