Dimensions in Pie Chart

[#1]

Hello.

I have a pie chart in QV 10 where I would like to show the information about the percent of sales in one Year comparing to the Year before and with the next Year, meaning I would have something like:

Year Selected: 2011

The pie chart would 3 slices with something like:

2010 - 25%

2011 - 34%

2012 - 41%

Is this possible? How can I achieve this?

Thanks in advance

[#2]

In addition, I have a report with that pie chart but I can't get it to print the % next to the slices as I can see in the screen... is that possible as well?

Thanks

[johnw · Accepted solution]

If your year is a 4-digit number, I believe this:

Dimension  = if(Year>=$(=max(Year)-1) and Year<=$(=max(Year)+1),Year)
Expression = sum({<Year=,Month=,etc. for all calendar fields>} Sales)
checkmark "values on data points" on expressions tab
checkmark "relative" on expressions tab

If your year is a date formatted as YYYY (which is what I usually do):

Dimension  = if(Year>=$(=addmonths(max(Year),-12)) and Year<=$(=addmonths(max(Year),12)),Year)

[#4]

I've done it now!

I hadn't my Expression fine so it didn't work as I expected but it was a mistake of mine so thank you very much John, I've done the pie chart now.

I still got the "error" in the report. When I create/edit the report, the % appear in the chart but if I do "Print Preview" they don't appear :s