The rial (code IRR) is the currency of Iran. It is subdivided into 100 dinar but, because of the very low current value of the rial, no fraction of the rial is used in accounting.
Although the "toman" is no longer an official unit of Iranian currency, Iranians commonly express amounts of money and prices of goods in "tomans." For this purpose, one "toman" equals 10 rials. Despite this usage, amounts of money and prices of goods are virtually always written in rials. For example, the sign next to a loaf of bread in a store would state the price in rials, e.g., "200 Rials," even though the clerk, if asked, would say that the bread costs "20 tomans."