Hi Elaine,

Thank you for your comprehensive comment. It is not completely what I am looking for. Or it doesn't do what I would expect: show me the tickets for this year (YTD), show me the tickets for the same period last year (YTD) and show the difference between them in %. Your example gives me this year (YTD of course), the whole of last year and no % (when I choose KPI).

What I've done myself is a variation on the example in this article. I've made two date range metrics (one for tickets created this year YTD) and one for one year in the past (last year YTD). I set them as D_COUNT and they give me the values I expect. So far so good. But when I try to calculate with them through a standard calculated metric (show me the difference in %), I get either 100% or a blank field. And I don't know what I'm doing wrong, because with other reports this method works perfectly. Do you know what I need to change to show the difference in %?

Screenshot of This year YTD

Screenshot of Last year YTD

Screenshot of my calculation for the difference in %

The result I get (using D_COUNT for the tickets and SUM for the calculated metric)