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 ...

Its secured inside your lock box or deep in a dresser drawer — the $2 bill. But some of the less-used currency could be worth far more than face value. Depending on the year and how a $2 bill was ...

To find an investment's interest rate, substitute price, face value, and duration into a formula. For T-bills, subtract purchase price from face value, divide by face value, adjust for term. Online ...