COGS will not be affected by what you entered as a price, that is just the amount that the customer account is credited.  The COGS will use the currect Average Cost of the item.

Hi,
First, thank-you for the replies, they did help. Let me reword my quiery. We are taking in a machine we sold, and the serial number is still in the system, but we are making it a different item because it is used. Using a credit (-1) on the sales order did not put any price information into that item number, though the serial number was tied to it and it shows a quantity of 1 on hand. Just wondering, should we do a purchase order, as if we were buying it, then credit that amount to the sales order to get the correct price on the sales order? Or should we be able to do it right off the sales order?
Arnold