After hitting an all-time low of 239.71 to a US dollar on September 22, the Pak rupee has since made a handsome gain of 8.25 per cent. It closed at 219.92 per dollar on October 7. Whether Finance Minister Ishaq Dar can bring the exchange rate to Rs200 per US dollar, as he has repeatedly claimed, broadly depends on two things: how the US dollar fares against major foreign currencies and how quic