percentage from total

l've actually been splitting these number further by year and wanted to see a proprtional development YoY - to do this I used Show value as -> Percent of Column Total. This did the trick in the table.

Now, as 2019 has only just begun I cannot compare on the grand total with 2018 for the obvious reasons, but I still can compare how much budget goes to each mean proportionally. And I'd love to do this in a line chart (i.e. see development of Incentive going from 90% in 2018 to 60% in 2019), but there I cannot add the budget field second time, and show value as only offers Percent of Grand total, which again does not show what I need to see.

Am I being clear?