The article How to Calculate the Regression of 2 Stocks Using Excel originally appeared on Fool.com. Try any of our Foolish newsletter services free for 30 days .

How to Use Excel to Calculate a Bond's Yield to Call. Bonds are investment vehicles that make regular coupon payments until maturity, at which time the bond's face value is paid.

Net Present Value Formula There are two formulas you might use to calculate net present value. The one that you choose can depend on the number of cash flows the investment has.

The easiest way to calculate the net present value of an investment is using an online NPV calculator. You can also make these calculations in Excel.