I have generated code by AI-Chatsonic in Opera Browser.

I don't know if the code is correct.

 cf = {{{2024, 1, 16}, 324.67`}, {{2024, 2, 6}, 
     634.09`}, {{2024, 11, 20}, 356.27`}, {{2023, 12, 31}, 0}};
 discountRate = 0.05;

 presentValue = 0;
 referenceDate = DateObject[{2023, 1, 1}];
 numEntries = Length[cf];

 For[i = 1, i <= numEntries, i++, date = DateObject[cf[[i, 1]]];
  amount = cf[[i, 2]];
  timeDifference = DateDifference[referenceDate, date, "Day"];
  presentValue += 
   amount/(1 + discountRate)^QuantityMagnitude[timeDifference/365];]

 presentValue

  (*1234.51*)

Using Cashflow:

 TimeValue[ Cashflow[{{{2024, 1, 16}, 324.67`}, {{2024, 2, 6}, 634.09`}, {{2024, 11, 20}, 356.27`}, 
 {{2023, 12, 31},  0}}], .05, {2023, 1, 1}]
 (*1234.56*)

Regards M.I.

I suggest that you also report this to Wolfram. They will open a case for you and attach your contact info to the case. I would think this would get high priority since it will break a lot of stuff.

Did something change? I believe the code below from Mariusz Iwaniuk executed correctly in earlier versions but doesn't since I updated to ver. 14.1.

TimeValue[
 Cashflow[{{{2024, 1, 16}, 324.67}, {{2024, 2, 6}, 
    634.09}, {{2024, 11, 20}, 356.27}, {{2023, 12, 31}, 0}}],
 .05, {2023, 1, 1}]

How long after a release like 14.1 does it usually take to correct problems like the one with TimeValue[] discussed here? It makes sense that Wolfram does not want burden support by releasing fixes piecemeal. But the expected time for a fix is a key factor on whether I should reinstall an older version of Mathematica.