[BroJoeK]

Thanks, I've seen various numbers, not sure which ones should apply:

"The United States Navy has over 440 ships in both active service and the reserve fleet, with approximately 70 more in either the planning stages or under construction, according to the Naval Vessel Register and published reports."

Of those, as you posted, just 234 are "commissioned", the rest non-commissioned (105), ready-reserve (51) and other support ships (50).
Non-commissioned ships include such as USNS Spearhead class, and Mercy class hospital ships:

[jospehm20]

I would go with the 234 commissioned number. PE Trump said he wants a 350 ship Navy. I am guessing that he does not intend to get there by scrapping 90 ships.