NJ 1099-R, Revising Previous Post Question

[Stacey94]

I posted question earlier but could not find to revise it.  Still relates to NJ 1099-R Unrecovered Contributions.

Have not contributed to the IRA since retiring but taking full RMD for several years. Stuck on page asking IRA Withdrawals.   How would I know what 2023 Unrecovered Contributions are?  Would the taxable portion of 2023 withdrawal be the same as the total amount withdrawn? Wouldn't Taxable Contributions made to IRA in 2024 be zero?   Please help.