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• The average annual percent change over several years. The APC is used to measure trends or the change in rates over time. For information on how this is calculated, go to Trend Algortihms in the SEER*Stat Help system. The calculation involves fitting a straight line to the natural logarithm of the data when it is displayed by calendar year.

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  Cite Definition for Annual Percent Change (APC)

  American Psychological Association (APA)

  Annual Percent Change (APC). (n.d.). Glossary of Statistical Terms. Retrieved March 27, 2023, from website: http://www.expertglossary.com/definition/annual-percent-change-apc.

  Chicago Manual of Style (CMS)

  Annual Percent Change (APC). seer.cancer.gov. Glossary of Statistical Terms. SEER Program. http://www.expertglossary.com/definition/annual-percent-change-apc (accessed: March 27, 2023).

  Modern Language Association (MLA)

  "Annual Percent Change (APC)." Glossary of Statistical Terms. SEER Program. 27 March. 2023 http://www.expertglossary.com/definition/annual-percent-change-apc.

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