Sorry but that site is for economists...not accountants. Big difference.
An economist is someone who has his head in a furnace and his feet embedded in ice and who says "On balance I feel fine."
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Three accountants were up for a job interview...the one question they were all asked was "What does 2 + 2 equal?"
The first guys said 4.
The second guy said 4.65 saying that by the time the question is answered interest would have accrued on the 4.
The third guy looked around and in a hushed voice asked "What do YOU want 2 + 2 to equal?"
The third guy got the job.