Purchases of the same product can be aggregated into a single line item. (For example, if you made five purchases of XYZ Green Window Solution, Item #44556 at $8.99 per purchase, the product can be aggregated as $44.95 in the credit form). However, each different product must be listed in a separate line so that the review team can confirm that supporting documentation for at least 20% of products has been provided.

Alternatively, a customized spreadsheet can be used in lieu of the form calculator. This spreadsheet should mimic the form as closely as possible in both format and content, and must be provided in a format that allows the reviewer to confirm the formulas being used (no PDFs!).