$250k * approx 430 (more ships, but not each command gets equal funding) = $107,000,000.
DON budget: 156,000,000,000
Operations and Maintenance budget: 50,000,000,000, which is where I'm assuming your 250,000 came out of.
Procurement budget: 42,500,000,000
R&D budget: 17,000,000,000
Source...