Learn how to calculate Weighted Average in Excel with percentages using the SUM function and the SUMPRODUCT function.

Here's how to use Excel as a calculator to perform basic arithmetic operations such as addition, subtraction, multiplication, and division.

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 Running Total in Excel Learn to create cumulative sums in Microsoft Excel with these step-by-step instructions and screenshots.

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 ...