If a % Discount Line Item is on a document, then it should appear on the Management Report.
If you just want a calculation, then it would be something like "documentitems->unitlist * 0.95" (5% discount) or "documentitems->unitlist * 0.9" (10% discount), etc.
Elise Hernandez
How do I create a Discount % off unit list price in the Management Report output area? Please provide specific formula.