Percentages aren't always easy to calculate, but one of the best tools in Excel's toolbox is calculating percentages for you. Here's how to do it.

How to Calculate a Trimmed Mean in Excel. A trimmed mean is much like a standard mean, which you can derive in Excel using the AVERAGE function. However, instead of using all of the data points to ...

Every base-year trend percentage equals 100 percent. Calculate each year's trend percentage separately for each account and for each section total on the balance sheet.

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

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