Suzanne is a content marketer, writer, and fact-checker. She holds a Bachelor of Science in Finance degree from Bridgewater State University and helps develop content strategies. Investopedia / Zoe ...

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 ...

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 ...

Perpetuities pay a fixed annual sum; interest rate calculated by dividing payment by price. Example: $5,000 annual perpetuity for $60,000 has an 8.33% interest rate. Validate investment value using ...

Many investors think that because bonds pay a set amount of interest, they are risk-free investments. While it's true that bonds tend to be less volatile than stocks, there are still several risk ...

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 ...