It all depends on your assumptions, of course.

For example, in what you pasted is the assumption that mining with these started two weeks ago.

Try it again with a start date of September, two weeks from now, and see what you get.
I do think it more realistic that these will be in our hands in two weeks rather than two weeks in the past. 

Using this one: http://www.coinish.com/calc/#
comes out to a loss of about 5% per unit over 12 months of operation at this purchase price and delivery in two weeks.