Calculating a Portfolio's Annual Rate of Return

market returns are hugely variable from year to year, a higher-than-normal return in any year is not necessarily something to brag about. And vice versa. In isolation, your portfolio's % return is meaningless. It is just 'a number'. There is no difficulty with this exercise when (e.g.) a portfolio worth $1,000 grows to $1,100 at year end, ................
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