New GL: How to create Profit C. Report with account and statistics combined

Dear Experts,

we are in need to build a report in the new Profit Center accounting (ECC6.0), which is combining the data from new GL table (FAGLFLEXT) and from the statistical key figure table FAGLSKF in one report in order to be able to report on sales per squaremetre for example. Preferabbly, we would like to use report painter/report writer for this, but any other solution how to create this without too much custom programming is highly appreciated.

Thank you very much,

Timo