1 won =0.0009 USD.
1 USD = 1069.6438+000 won
Then we can probably calculate 65.438+035 billion won /654.38+0069.438+000 won = 654.38+0.438+0.50 billion US dollars.
As the exchange rate has been changing, so has the convertibility rate. The daily exchange rate between currencies can be determined by referring to the daily exchange rate between banks.