Learn how to sum and count Excel cells by color with 3 easy methods. Save time, reduce errors, and boost your data analysis ...

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.

In Excel, rank is a value that represents the position of one value within a group of values. You’ll want to rank all kinds of data: student GPAs, sport statistics, product sales and so on.

Excel will calculate the number of days between the dates entered in cells B3 and A3 and display the result in cell C3. Take your mouse pointer to the lower-right corner of cell C3.

In cell B4, enter the formula "=-PMT(B2/1200,B3*12,B1)" to have Excel automatically calculate the monthly payment.For example, if you had a $25,000 loan at 6.5 percent annual interest for 10 years ...

To calculate someone's age in Excel, enter the formula =DATEDIF(A2,TODAY()," y"), where cell A2 contains the date they were born and "Today" is today's date. Press Enter, and Excel will output the ...

4] Calculating Interest Compounded Monthly in Excel To calculate the interest compounded monthly, change the value of the B4 cell to 12 and use the same formula. That’s it.

Calculating operating expenses in Excel is not difficult once you understand how to set up the spreadsheet. Launch Excel 2010. A new spreadsheet opens on the screen.

Adding a condition to a simple revenue sheet might spell trouble in Microsoft Excel, but don't worry--a simple conditional function can handle the request.

How to calculate average stock returns in Excel. In the following example, I'll calculate the returns for Microsoft stock using historical prices and dividends. The first step is to get organized.