take the 12/31/22 balance of the IRA.
then the divisor in 2022 was 20.4 for a 68 year old, so the divisor in 2023 is 19.4 (and 2024 is 18.4, etc.)
https://www.fidelity.com/building-savings/learn-about-iras/irs-single-life-expectancy-table
So the RMD is the 12/31/22 IRA balance divided by 19.4.
But as other mentioned, and based on your financial situation, it might be better to take more than the minimum each year. OTherwise, there is going to be a large lump in Year 10, which could push you into a higher tax bracket. Everyone's situation is unique.
