Way back in the day in Cambodia, a bounty of 1 million USD was offered for the head of Dick Marcinko. Today, in the currency of choice that 1 Million USD would seemingly be more than the entire economy of Cambodia @ 4115226337.45. OK, not really, as the Cambodian GDP is 22.16 Billion USD, but it would take up 2.5%. These are all in today's dollars, which I suspect at the time would have been a lot more in USD value with the exchange rates at the time.
The 50,000 SYP (Piastre) offered by Vietnam is a slightly different conversion that I have not calculated yet.