The portfolio page of the Investing tab can be customized with various calculations. Two are different but the descriptions don't tell me what the difference is.
Avg. Annual Return (%) := Average total return (in [time span] period); also known as internal rate of return (IRR)."
Return (%) := Change in value, plus dividends, capital gains and (over past [time span])
Each shows a close but different value for comparable time frames. So there has to be a difference. From the definition, one might think the Return (%) is not annualized, but, as I said, the values even over three and five year periods are similar. So Return (%) has to be annualized too. And if, as it says it includes dividends, return of capital and gains (presumably realized and unrealized), then I think that would be the same as the internal rate of return.
Can someone shed some light on this mystery? Has Quicken published the math definitions of these functions?