@Tim Stewart Saved Search for Sales Orders/fulfillment that compare to Credit Memos/Returns and do a Numeric Formula to find a percentage. Use the Group to get everything on one line item.

Thanks, I'll give that a shot

Yeah, I know a lot of people use NetSuite differently, so the fulfillment for us is Shipped, but at my old company it was invoices. So if you know what transactions records you are looking for you should be able to group by SKU or Group by brand. And then you want to SUM quantity for those transactions types.