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.

If you need to find the percentage change in Excel, especially across a range of cells, then this post offers step by step guidance.

Although calculating a percentage in Microsoft Excel is easy, getting it to display properly requires a little extra effort, because Excel displays percentages in decimal format by default.

Instead, you would use the percentage weight when calculating the average. By constructing an Excel spreadsheet, this calculation becomes a simple matter of data entry.

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