Vertical Common Size Income Statements
Vertical common size financial statements remove the impact of size by expressing each line item as a percentage of a reference item, usually sales or assets. In a spreadsheet this can be done simply by dividing each line item by that year’s net revenues figure. Consider the following, which is the 3-year income statement presentation for Plantronics, Inc. included in their 10K statement filed June 5, 2006.
We can see right away that in Plantronics’ 2006 fiscal year its net income fell even though revenues increased significantly. However, it is not so easy to tell exactly why the performance deteriorated. Now consider the same statement expressed in a vertical common size format.
Presented in this format, it is easy to see that a significant increase in the cost of sales relative to total sales drove declining profit margins.
See also:
Common Size Financial Statemtents
Vertical Common Size Balance Sheets
Horizontal Common Size Income Statements
The Intelligent Investor: The Classic Text on Value Investing
Financial Statement Analysis: A Practitioner's Guide, 3rd Edition
Managing Investment Portfolios: A Dynamic Process (CFA Institute Investment Series)



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