Hi:
A lot of folks use PROC REPORT directly (with a COMPUTE block) to concatenate the 2 numeric vars into a character var; or they use a combination of DATA step to do the "data massaging" (such as indicating what lines to indent or which lines to bold) and then PROC REPORT to to the report. Some folks (who need more control) use DATA _NULL_ and a custom TABLE template.
If you look at this paper, you can see 3 different types of this report. Generically, I called them "demographic" reports, because this is what my students always called them. There are 2 versions of Example 1 (both use PROC REPORT) on massaged data and 1 version of Example 8 (which uses DATA _NULL_ and a custom TABLE template.)
The paper is here:
http://www2.sas.com/proceedings/forum2008/173-2008.pdf
The data and programs are here:
http://support.sas.com/rnd/papers/sgf2008/complex_reports.zip
Examine the data for example 1 -- the 2 files have already been "massaged" and the 2 PROC REPORTs for example 1 are expecting data in this structure.
cynthia