How to Calculate Fluctuations in Excel. Calculating data fluctuations-- also called variance -- is a multi-step process that requires total accuracy. Excel 2010 provides two basic formulas for ...

Learn about the weighted average cost of capital (WACC) formula in Excel and use it to estimate the average cost of raising funds through debt and equity.

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