Last Year's Investments/Portfolio Total Return as Percent

Try the Investing > Investment Performance report. Set to Yearly and 2020. You can group by account or security if you want. It reports the Average annual return which is the same as IRR.

I don't know what calculation you are using for "total rate of return" but it you compare the result of Excel's XIRR function to the Investment Performance Report you will see that they are the same.

Caveats:
-- When Quicken does a report for 1/1 to 12/31, it uses the prior year's 12/31 closing prices as the starting prices for the year, as it should.

-- The calculations may vary slightly because IIRC Quicken does not account for the extra day in leap years in its calculations.

-- When you are grouping by account, make sure "No security (includes cash)" is included in your security selections.

-- Remember that published returns for securities generally assume that dividends were reinvested and of course there were no purchases or sales during the period. if you did something different your results will also differ.

Please let us know how it goes.