In Excel, there are two ways of calculating the weighted average with percentages: using the SUM function and using the SUMPRODUCT function. Let us have a look at these 2 methods in detail.

Averaging values in an Excel sheet is easy. But perhaps you want to ignore zeros or include multiple sheets. Knowing how each averaging function works is the key to choosing the right one.

Excel has over 475 formulas in its Functions Library, but we've selected the most popular, from date and time functions to mathematics and simple data manipulation.

Learn how to calculate simple, weighted and exponential moving averages in Microsoft Excel using Data Analysis Tool Pack or Formula.

If you need to average a list of values in Microsoft Excel that contain duplicates without including the duplicates, don't fret over a complex expression when you can easily remove those duplicates.

Kinds of Functions Used in Excel. Microsoft's Excel program, widely used in business, comes with many built-in functions that perform mathematical and logical operations on spreadsheet data.

Excel 2013 provides the DATE and XIRR functions, which derive the final annual interest rate from a series of payments on known dates.

With Excel and data from your broker, however, calculating the average return is fairly easy using the XIRR function. How to calculate average stock returns in Excel ...