Report to congress on USNavy destroyer programs

From USNI News;

https://news.usni.org/2021/11/25/report-to-congress-on-u-s-navy-destroyer-programs-8

When procured at a rate of two per year, DDG-51s cost roughly $2.0 billion each.
Due to the reduced production economies of scale that would occur at a production rate of one ship per year, the one DDG-51 requested for procurement in FY2022 has an estimated cost of $2,401.7 million (i.e., about $2.4 billion).

Procuring one DDG-51 rather than two DDG-51s in FY2022 would prevent the Navy from fulfilling its obligations in the final year of the FY2018-FY2022 DDG-51 MYP contract.