Hi Brian,
Try right clicking on the table -> Format table -> check the box for Avoid duplicate row aggregation, if that doesn't help, it may mean that you're just getting the aggregated row in the report, how can you split it if you're getting it from the database at all. In that case, you'll have to modify the Discount object in Universe and make it a Dimension and remove the Projection function (Sum) on it, obviously save and export the universe and then try refreshing the report.
Hope that helps.
Thanks,
Mahboob Mohammed