Learn how to calculate the net present value (NPV) of your investment projects using Excel's XNPV function.

This is the simple, easy and perfect way to calculate time differences in Microsoft Excel. Read: How to lock the Chart position in Excel How do I calculate the time difference in Excel in 24 hours?

The article How to Calculate the Average Return for the Share of Stock in Excel originally appeared on Fool.com. the_motley_fool has no position in any stocks mentioned.