At least $300,000 for what Australia has done (chartering a Qantas airbus to find her, and putting two Orions on station in case they were needed to airdrop supplies or find her again).
Add in the costs for the three ships that diverted to pick her up - close to half a million all up, I’d say.
some of that can be chalked up to training, which they would be doing anyway. The only way you can train for S&R is to go out and do it.