Dynamically change report rows based on a percentage

I'd like to create a report that shows list price, sale price, discount (list price - sale price), and discount percentage (discount/list price), organized by percentage.  The source data comes from a fairly detailed and complex universe with sales data.  Without modifying the universe, I was hoping there would be a way to force webi to dynamically create rows based on the each percentage level. What I have right now looks something like this:

List Price     Sales Price    Discount    Discount %

500            485            15          3%

But I'd like to have the report look something more like this, where a separate line is shown for each discount:

List Price     Sales Price    Discount    Discount %

200            198            2           1%

100            97             3           3%

200            190            10          5%

Is there any way to get webi to separate the % values into distinct categories (e.g. treat the discount like a dimension instead of an aggregated formula/measure)?