# Excel University Blog

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# IF

## Replace 25+ Nested IFs with a Single Simple Lookup

| June 11, 2024 |

I was recently asked the following question: “I have a drop-down with 25+ categories that determines the fee percentage. Can I use an IF function to compute the fee based on the selected category?” I answer this question in this post. Video Objective Let’s begin by understanding the objective and the question. There is an…

## Excel IF Function (and multiple conditions)

| April 25, 2023 |

Do you want to learn how to use Excel’s IF function, including how to consider multiple conditions? If yes, then you have come to the right place! The IF function is one of the most commonly used functions in Excel, and it is essential for data analysis and decision making. In this post, we’ll walk…

## Dollar Unit Sampling

| September 20, 2017 |

This post will demonstrate how to use Excel formulas to determine sample selections based on dollar units. The basic idea is that each dollar is a sampling unit, and as such, this method is more likely to select higher dollar items for testing. This method goes by several names, including monetary unit sampling, dollar unit…