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

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.

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The article How to Calculate the Asked Yield on a T-Bill originally appeared on Fool.com. Try any of our Foolish newsletter services free for 30 days.

A Treasury bill, or T-bill, is a short-term government debt security that doesn't pay interest, so the process of calculating its return differs a bit. Let's dive in.