In this article we will take a quick look at simple formulas in Excel, especially the calculation of VAT and inclusive of the sale price (including tax) for a purchase price without VAT (tax).

For instance, a user can define a custom LAMBDA function to calculate sales tax, using the price and tax rate as inputs to return the total cost.

The article How to calculate conditional subtotals in an Excel revenue sheet uses simple expressions, a function, and a conditional format to display a daily balance in a revenue sheet.

Adding a condition to a simple revenue sheet might spell trouble in Microsoft Excel, but don't worry--a simple conditional function can handle the request.