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发帖数: 85 | 1 http://invest-faq.com/articles/analy-rule-72.html
The "Rule of 72" is a rule of thumb that can help you compute when your money
will double at a given interest rate. It's called the rule of 72 because at
10%, money will double every 7.2 years.
To use this simple rule, you just divide the annual interest into 72. For
example, if you get 6% on an investment and that rate stays constant, your
money will double in 72 / 6 = 12 years. Of course you can also compute an
interest rate if you are told tha |
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