Specify the conditional logic for the customized summary text. You cannot use the LINE statement in conditional statements (IF-THEN, IF-THEN/ELSE, and SELECT) because it does not take effect until PROC REPORT has executed all other statements in the compute block. These IF-THEN/ELSE statements assign a value to TEXT based on the value of Sales.sum in the summary row. A LINE statement writes that variable, whatever its value happens to be.

      if sales.sum lt 500 then
         text='Sales are below the target region.';
      else if sales.sum ge 500 and sales.sum lt 1000 then
         text='Sales are in the target region.';
      else if sales.sum ge 1000 then
         text='Sales exceeded goal!';
      line ' ';
      line text $35.;
   endcomp;
   run;