Calculating the interest rate using the present value formula can at first seem impossible. However, with a little math and some common sense, anyone can quickly calculate an investment's interest ...

Image source: Flickr user Ken Funakoshi. A perpetual annuity, also called a perpetuity, promises to pay a certain amount of money to its owner forever. A classic example would be that of a perpetual ...

In the world of finance, an annuity is a contract between you and a life insurance company in which you give the company a lump sum or series of payments, and in return, the insurer promises to ...

Present value is a useful mathematical formula designed to figure out if money received now is worth more than money received later. What Is Present Value? Terms Associated With the Present Value of ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Amy is an ACA and the CEO and founder of ...