Today, the maximum buying rates at commercial banks of Yerevan were 410,5 drams for 1 dollar, 543,5drams for 1 EUR and 12,5 drams for 1 Russian ruble. The minimum selling rates stood at 411,7 drams for 1 dollar, 547 drams for 1 EUR and 12,6 drams for 1 Russian ruble .