Assuming that your father was the original owner of the traditional IRA making you the original designated beneficiary, your RMDs are calculated by dividing the previous year end value in the inherited IRA by your life expectancy factor. Your life expectancy factor is your life expectancy from the Single Life Expectancy table for your age in the year following the year your father died, reduced by 1 each subsequent year. The table is in Appendix B of the 2022 or later version of IRS Pub 590-B. (Don't use the table from earlier versions of that publication. The IRS updated the life-expectancy the tables.)
https://www.irs.gov/pub/irs-pdf/p590b.pdf
Because the account must be fully depleted by the end of year 2030 in this case, you might want to take distributions that are larger than the RMD to spread the taxable income out more evenly over the years.
