ISLAMABAD  -      According to Karachi Sarafa Association, the per tola price of 24 karat gold decreased by Rs 550 on Wednesday and traded at Rs 70,000 per tola as compared with the last closing of Rs 71,550. The price of 10 gram gold also witnessed decrease of Rs 471 and traded at Rs 60,014 against Rs 60,485. The price of silver remained unchanged at Rs 900 per tola and that of 10 grams silver at Rs 771.60.