If you're picturing a stress-free retirement where you live off investment interest, use this easy formula to calculate how much of a principal you'll need.

Whether you are paying interest or being paid interest, it's important to fully understand how that interest is calculated. There are two basic types of interest: simple and compound. How each type is ...

Simple interest is paid only on the principal, e.g., a $10,000 investment at 5% yields $500 annually. Compound interest accumulates on both principal and past interest, increasing total returns over ...

Math is awesome. Wait!! Don’t click out of here to go read an article about Beyoncé and her twins! Stay with me so I can tell you why math is awesome. Because if you have a basic understanding of math ...

For most investors, wealth creation is not about chasing the next big opportunity — it’s about understanding time and the quiet power of compounding. Financial planners often describe compounding as ...

Simple interest is used when a company borrows money for a loan. Usually this amount will be on a monthly basis. The formula for simple interest is principal times the interest rate times the period.

Calculating Simple Interest is an excellent method to judge your savings in advance. However, calculating it for various interests and principal sums could be complex. This is where Excel comes to ...