The problem is that you are the one that is confused because you are too busy rebutting and not thinking.
During 1860 the imports of the South were valued at $331 million.
The North consumed $31 million in imports.
The total value of imports into the US that year was $354 million.
You were going to post a link to a source other than MSN, remember? You said the figures were from the U.S. Treasury, so post the link.
I've tried to find someplace that supports your numbers, but am unable to do so. The closest thing I've found, the civilwarhome.com website, shows numbers that are almost the complete opposite of yours:
"As to imports, the total for the twenty-five states reporting $335,650,153. Eight Southern states could make up only $14,654,129 of the total. Again Arkansas, Tennessee, and Mississippi are missing. Of the Southern total Louisiana had $11,960,869 of the imports, showing clearly the importance of New Orleans."
Please, a source for your numbers.