Year Over Year (YoY)
What is Year Over Year (YoY)?
How Does Year Over Year (YoY) Work?
Let's assume Company XYZ'sbegan on January 1 and that today is March 31. During this time, Company XYZ recorded the following:
By comparing the 2012 revenues to the 2011 revenues, we can calculate that Company XYZ was up 50% year over year.
Why Does Year Over Year (YoY) Matter?
Year-over-year information is useful in looking for trends or measuring performance against goals.
It's important to remember that comparing year-over-year information among companies with different fiscal-year start dates can distort an analysis; the time included may vary and seasonal factors may become skewed. It is also important to remember that the extra day in leap years also can distort comparisons.