The price is $12 to $15 a person at the official exchange rate.
The official rate rose from 100,000 to 130,000 in the first two weeks of June.
That would be more than $160 billion at the official exchange rate.
The profit was the difference between the higher black market and lower official rate.
At the official rate of exchange, that would amount to $5,000.
Between 1970 and 1989, the official exchange rate was fixed by the government through law.
The official exchange rate is 140 won to the dollar.
His wage is a little more than $7 a day at the official exchange rate.
The 'official rate' of interest has fallen to 9% with effect from 6 December 1992.