Dave's Killer Bread follow-up...
I never realized that breads were sliced in odd numbers and nutritional facts would be based on one slice...
I based the 13 slice count on the weight of a loaf as given on the bag, and the weight of a slice from their web site. I'm guessing that the weight of the slice is either rounded up or down, and depending on which, would mean that there are really 12 or 14 slices, not 13.
I didn't want to spell all of this out, because it is boring and irrelevant, but then I realized which thread to which I am posting.