Converting To A Roth IRA From A Traditional IRA That Includes Non Deductible Contributions

I plan on converting a small portion of my Traditional IRA to a Roth IRA after taking my RMD for 2024.

The Traditional IRA includes non deductible contributions amounting to only about 1.5% of the total IRA value prior to converting.

I plan on converting only about 3% of the Traditional IRA to my Roth IRA.

While hardly worth bothering with, is there a need to prorate the conversion and how would I report that in TurboTax?

Thanks in advance