IRR

Internal Rate of Return (IRR)

What is the Internal Rate of Return (IRR)?

The Internal Rate of Return (IRR) is the discount rate that makes the net present value (NPV) of a project zero. In other words, it is the expected compound annual rate of return that will be earned on a project or investment. In the example below, an initial investment of $50 has a 22% IRR. That is equal to earning a 22% compound annual growth rate.

The rial (Persian: ریال ایران, romanized: riyâl-è Irân; sign: ﷼; abbreviation: Rl (singular) and Rls (plural)^[15][16] or IR^[17] in Latin; ISO code: IRR) is the official currency of Iran.

There is no official symbol for the currency but the Iranian standard ISIRI 820 defined a symbol for use on typewriters (mentioning that it is an invention of the standards committee itself) and the two Iranian standards ISIRI 2900 and ISIRI 3342 define a character code to be used for it. The Unicode Standard has a compatibility character defined U+FDFC ﷼ RIAL SIGN.^[18]

A proposal has been agreed to by the Iranian parliament to drop four zeros, by replacing the rial with a new currency called the toman, the name of a previous Iranian currency, at the rate of 1000 toman = 10,000 rials. This change is expected to take place between 2020 and 2022.^[19]