It’s not often that you have to do a financial calculation
and don’t have a calculator to help you. But in case something happens to send
us back to the stone age it would be good to know the rules of 72, 70, and 69.3.
Showing posts with label doubling time of an investment. Show all posts
Showing posts with label doubling time of an investment. Show all posts
Friday, June 15, 2012
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