price editor keeps past prices for ROI
Larry Evans
cppljevans at cox-internet.com
Sun Jul 2 21:04:03 EDT 2006
On 07/02/2006 07:22 PM, Larry Evans wrote:
[snip]
> I want average return on investment. For example.
>
> commodity 1:
> 2000 invested 1 for 1 share.
> 2001 price is 1
> 2002 sold for 4
>
> So 1*2^2 =4 hence the AveROI=100% for 2000 to 2002. But if I'd
> sold it in 2001, the AveROI would have be 0. Between 2001
> and 2002, the AveROI would be 300% (i.e. 4-1 expressed as percent).
> Thus, I need the price of commodity 1 at the start and end of the
> time period over which I'm calculating the AveROI.
I probably was using the wrong term. The Average Annualized Rate of
Return as described here:
http://en.wikipedia.org/wiki/Return_on_investment#Average_Annualized_Rate_of_Return
is what I want.
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