Translate Foreign Revenue Carefully

The three-volume Principia Mathematica, written by Bertrand Russell and Alfred North Whitehead between 1910 and 1913, is regarded as one of the most influential works on logic ever. Influential, yes; good beach reading, no: It took them well into the second volume to develop the logic needed to state "1+1=2."

Needless to say, this would not go over big in a business in which we have to reduce everything to simple buy-or-sell decisions and need quick and plausible justifications therefore. But Russell and Whitehead were on to something: Questions that are apparently simple on their face can be astonishingly vexing to answer. Consider the following question posed by a RealMoney reader for this site's "Ask Our Pros" section:

When looking at a company's annual report, what percent of a company's sales/revenue should be from sources outside the U.S. for the company to benefit from a falling dollar?

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