Calculate your T-Value by taking the difference between the mean and population mean and dividing it over the standard deviation divided by the degrees of freedom square root.

Here are 3 easy ways to calculate the square root of a number in Microsoft Excel - using SQRT function, POWER function and Exponential formula.

How to Use Microsoft Excel to Calculate Seasonal Indexes. A seasonal index is a way of measuring the seasonal variation -- that is, to measure the change that is due to seasonal changes in demand ...

Parentheses: Controlling the Order of Operations Parentheses—or rounded brackets—are used in Excel to define the order in which calculations are performed.

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

Find out more about the forward price to earnings ratio and how to calculate the forward price to earnings ratios of companies in Microsoft Excel.