Hi you would actually need to go to your ebay to your ebay invoices. I do not think auctiva would have that info.
However, I do not think ebay system will give you the Total in one place but you could do a find for the item number and get it fairly easy.
Also, be sure if you want real accurate info. to add in your paypal fees.
Vickie
http://stores.ebay.com/VICKIES-VARIETY