How to Create a Report Showing Summary Cumulative Cost in a Tabular Format for an Entire Project (Do

I found Doc ID 2081307.1.

I'm trying to create this report, but it appears the "costs" must be associated with "units" for this to work. We use only one Resource, non-labor, lump-sum cost. Is there a way to create a similar report when using cost not associated with units?

Below is a screen shot from the Doc.

Below is a screen shot of the selections for units from the Doc.