Am I correct that this is just the bare weight of the comic or book? Or is there some additional packaging estimate to get to a true shipping weight that should be added? And should I round up to the next even ounce? I rarely fill this in, but occasionally do when a book or comic is abnormally heavy so that sellers don't get hosed on shipping cost. I don't want to cause buyers to overpay either though by entering the wrong value. Than ks!

id round up with just the item in mind

Simple enough. Thanks!