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<p>[QUOTE=&quot;-jeffB, post: 3607133, member: 27832&quot;]You&#039;re assuming that every total is an exact tenth, but it&#039;s not. Remember, it&#039;s not just tax rates that impose non-round numbers; it&#039;s weight-based pricing, <i>time</i>-based pricing, and even &quot;3 for a dollar&quot; type pricing.</p><p><br /></p><p>If prices are calculated to a tenth of a cent and then rounded, they go up 50% of the time, and down 49% of the time. If they&#039;re calculated to a hundredth of a cent, they go up 50.0 percent of the time, and down 49.9% of the time, and so on.</p><p><br /></p><p>Of course, it&#039;s <i>possible</i> that a merchant is doing everything with exact-cent prices, and that there&#039;s a systemic rounding error in the government&#039;s (or the merchant&#039;s) favor. On average, this error will be <i>one cent per transaction</i>.</p><p><br /></p><p>How much of your life are you willing to waste counting pennies in order to avoid that loathsome one-cent burden?[/QUOTE]</p><p><br /></p>

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