how to report backdoor?

Hi, I'm having a difficulty to figure out what numbers to put in for backdoor and I'd appreciate if anyone could help.  I'm doing an amendment for 2021 return as I did not file 1099-R for the Roth Conversion held on 2021/03. ($6372)

 

Here is my situation.

 

2020/01-2020/12 -  Contributed to Roth IRA  - $5496.

2021/03 - Recharacterized to Trad IRA - $6338.  ($5496 + earning $842)

2021/03 - Converted to Roth IRA back  - $6372 and this was total conversion.  (Trad IRA balance was $0)

 

2021/01-2021/12 - Contributed to Roth IRA - $5496.

2022/03 - Recharacterized to Trad IRA - $5705 ($5496 + earning $209)

2022/03 - Converted to Roth IRA back - this goes on 2022 return, so I ignore it here.

 

Now I added 1099-R for $6372 Roth Conversion and trying to figure out if there should be taxable portion as I had the earnings.

After entering the 1099-R, though questionaries, I found the following page.

2021 end value.png

As far as I think, $5492 should go in the red box?

At the end of 2021, there was no Trad IRA balance as the conversion for $5705 was held on 2022/03.

Although the amount transferred for the conversion was $5705, number should go in the red box is $5496 since we ignore the earnings?  Is this correct?  If no, please advise.