Using percentages in crosstabs with hierarchies

Hi,

My requirement is to show margin percentages in a crosstab using hierarchies. In my HANA (Analytic) view I have created a simple formula that calculates the margin percentage. In Design studio however, the percentage values are simply being summarized into a number that does not represent the margin percentages at all..

I know it's not possible to use calculated key figures in Design Studio, so how can I use percentages at all in Design Studio in crosstabs?

Regards,

Sjoerd