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# The rule of 72

 P: 1 Hello, everyone I need some help with this program. I am displaying a table showing, for each value of r from 1 to 20, the rounded value of 72/r and the actual number of years required for prices to double at an r percent inflation rate. Assume prices increase at the end of each year. I am having a problem with getting the actual number. How do I get the actual number can anyone help me. Thank you Monique May 5 '07 #1
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 Expert 5K+ P: 8,434 Can you show us what you have so far? (Also, what version of VB are you using?) May 7 '07 #2

 Expert 100+ P: 807 Hello, everyone I need some help with this program. I am displaying a table showing, for each value of r from 1 to 20, the rounded value of 72/r and the actual number of years required for prices to double at an r percent inflation rate. Assume prices increase at the end of each year. I am having a problem with getting the actual number. How do I get the actual number can anyone help me. Thank you Monique Wikipedia has a good description of the Math, http://en.wikipedia.org/wiki/Rule_of_72. For VB6 & VBA, use the FV function. FV is also in VB.NET, but hidden in the Financial namespace, so use Financial.FV(...) May 7 '07 #3

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