Sunday, June 20, 2021
Here's how I created the formula that calculates the breakeven sales volume for a prospective change in product prices.

Should You Raise Prices? Should You Lower Them? Derivation of the Formula For Planning...

The article, Should You Raise Prices? Or Should You Lower Them? These Excel Charts Can Help You Answer Those Questions, introduces the Price-Change formula....
Excel is a great tool for creating business plans. But one massive Excel business plan offers some great ideas about what NOT to do.

How to Audit and Improve Excel Business Plans

A client, who's a business-finance consultant, recently was hired to improve the financial forecast for a major startup company. He recently sent me the...
Which is faster: VLOOKUP? Or INDEX-MATCH? Here are the test results.

Excel’s Fastest Lookup Methods: The Tested Results

This article presents the results of my tests to find Excel’s fastest lookup method. I discussed the report workbook in A Volatile Workbook to Test Calculation...
You need a volatile workbook to test Excel calculation speeds. Here's how I set one up to test lookup formulas.

A Volatile Workbook to Test Calculation Times for Excel Lookup Methods

In Use Excel VBA to Test Report Calculation Times I described a macro that finds the total time necessary to calculate Excel for a specified number...

Latest Articles

A Lesson in Excel Analysis Learned from Rising US Inflation

Looking at the trends in the annual rate of change (ROC) of business and economic measures is an excellent way to reveal hidden information...
Here's how you can split delimited text into an array with a short Excel formula, and then wrap the formula with the INDEX function to return any value from the array.

How to Split and Index Delimited Text with Excel Formulas

For the longest time I've wished that Microsoft would add a SPLIT function to Excel. The function would have a syntax like this... =SPLIT(text, delimiter,...
Berkshire Hathaway is raising prices, and their costs are increasing. Inflation is on the rise. These Excel charts illustrate the the problem.

Warren Buffett, Inflation, and Excel

On May 3, 2021, CNBC quoted Warren Buffett saying, “We are seeing very substantial inflation. We are raising prices. People are raising prices to...
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