Excel's STDEV formula can automatically calculate the standard deviation of any set of numbers, so you don't have to go through the math yourself.

Since each date is really just a number stored in Excel, to compute the midpoint of two dates you would use the same mathematical formulas you would use to calculate the midpoint of two numbers ...

This post will show you how to calculate the percentage difference between two numbers in Excel. using this formula you can find percentage difference easily.

Discover what a log-normal distribution is, its financial applications, and how to calculate it, including using Excel for practical financial analysis.