How to Use Excel to Calculate the ROI on a Product. "Return on investment" is a financial calculation used to gauge how well the money you invest earns you even more money. To calculate ROI you ...

The payback period is the amount of time needed to recover the initial outlay for an investment. Learn how to calculate it with Microsoft Excel.

Return on Investment (ROI) can help you determine how much you'll have for retirement. Here are key formulas and strategies to plan and maximize your financial future.

Learn how to calculate the net present value (NPV) of your investment projects using Excel's XNPV function.

Calculating the return One of the best methods for calculating an average return for a stock investment is the XIRR function in Excel.

You can also use a rental property calculator to help you calculate the ROI. • Net Operating Income (NOI): The net operating income or NOI represents how profitable your investment is.