Karachi:Â The current buying and selling exchange rates of major currencies against the Pakistani Rupee (PKR) in the open market for today are as follows:CurrencyCodeBuying RateSelling RateUnited States DollarUSD285.30286.15Pound SterlingGBP391.70394.35EuroEUR335.80338.25Saudi RiyalSAR76.0576.35U.A.E DirhamAED77.7078.05Australian DollarAUD186.00190.00Canadian DollarCAD208.00212.50China YuanCNY39.2239.62