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.

Learn how to find the square and square root of a number or digit in Excel. Use formula calculate the square and square root.

Percentages aren't always easy to calculate, but one of the best tools in Excel's toolbox is calculating percentages for you. Here's how to do it.

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.

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