Penn Station's nutritional information leaves much to be desired. While it technically has all the data you need to make informed choices, the presentation is so absurdly disingenous – requiring linear algebra to make sense of what is actually going on – that no one would spend the effort to decipher it.
This tool changes that. I have spent the effort. Now with a few clicks, you can find out precisely what you're putting into your body (within the limits of FDA nutrition labeling requirements).