So, % of grand total when used on a line chart does something quite odd compared with other tools i've used. As far as I can see, on my example data below there are 2 "totals" available, ie, the total for the week in question, or the total for the entire period. I'd like the % of grand total to calculate based on the x-axis dimension selected, ie, the numbers it produces are in my "What I want PowerBi to do".
I can see a few posts saying you can achieve this potentially with a stacked column chart, I don't want to use this however. The rational for this is I want to display this on a line chart for 2 main reasons:
- In my experience a line chart is the best visualisation for displaying data over period of time, I dislike column charts for this purpose as it forces the end user to try and work out the slant between 2 seperate data points
- Stacked charts, particularly as you add more and more Categories are very difficult for users to see the difference within specific Categories when they are in the middle of the column (obv, top/bottom category you can see a trend in
See below some example data tables, and some example charts - can I do this? can anyone explain how?
Thanks in advance
