An annuity is a financial product that provides a stream of income over a set period. Annuities are often used in retirement planning as a way to generate income from a lump sum investment.

Q. I have prepared projections for a proposed project, and I want to calculate the internal rate of return. Instead of using Excel’s IRR function, should I use simple math formulas so others can ...

Learn how to calculate the intrinsic value of a stock using Warren Buffett's proven method! Intrinsic value is the foundation of successful investing, helping you determine whether a stock is ...

NORMSINV is an Excel function used along with normal distributions. It allows you to conduct calculations faster and with more precision than by doing them by hand. Further, you can use NORMDIST to ...

Learn what compound interest is, how it’s calculated—from annual rates to continuous compounding—and why it’s powerful for savings (and dangerous for debt).