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Last modified by Artur K. on 2026/05/29 14:28
From version 2.9
edited by Helena K.
on 2026/01/27 13:45
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To version 2.7
edited by Helena K.
on 2026/01/27 13:41
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88 88  
89 89  The formula for a simple annual growth rate can be expressed as follows:{{footnote}}Note: often growth rates are expressed as percentage growth, in which case the value is multiplied with 100%. This is however not relevant for this guideline and is left out for simplicity.{{/footnote}}
90 90  
91 -[[image:1769510529532-579.png]]
91 +//GT= VT-VT-PVT-P//[[image:file:///C:/Users/axyli/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
92 92  
93 -A growth rate over P years in year T is the difference between the current year value and the value P years ago related to the value P years ago; with G being the growth rate, V being the absolute value, T being the time (year) and P the number of periods.
93 +à A growth rate over P years in year T is the difference between the current year value and the value P years ago related to the value P years ago; with G being the growth rate, V being the absolute value, T being the time (year) and P the number of periods.
94 94  
95 95  The growth rate formula can be expressed in VTL and linked to transformation type G. The year T is linked to the respective year in the time series and the parameter P is linked to the transformation period concept.
96 96  
97 97  **Example:**
98 98  
99 -|(% style="width:427px" %)**Year à**|(% style="width:230px" %)**2010**|(% style="width:365px" %)**2011**|(% style="width:386px" %)**2012**|(% style="width:322px" %)**2013**
100 -|(% style="width:427px" %)**GDP Level**|(% style="width:230px" %)500|(% style="width:365px" %)505|(% style="width:386px" %)510|(% style="width:322px" %)505
101 -|(% style="width:427px" %)**Growth rate,
102 -period on period**|(% style="width:230px" %) |(% style="width:365px" %)0.0100|(% style="width:386px" %)0.0099|(% style="width:322px" %)-0.0098
103 -|(% style="width:427px" %)**Formula**|(% style="width:230px" %) |(% style="width:365px" %)[[image:1769510625588-573.png]]|(% style="width:386px" %)[[image:1769510654674-828.png]]|(% style="width:322px" %)[[image:1769510676535-250.png]]
104 -|(% style="width:427px" %)**Growth rate,
105 -over 2 periods**|(% style="width:230px" %) |(% style="width:365px" %) |(% style="width:386px" %)0.0200|(% style="width:322px" %)0.0000
106 -|(% style="width:427px" %)**Formula**|(% style="width:230px" %) |(% style="width:365px" %) |(% style="width:386px" %)[[image:1769510701118-480.png]]|(% style="width:322px" %)[[image:1769510718908-350.png]]
99 +|**Year à**|**2010**|**2011**|**2012**|**2013**
100 +|**GDP Level**|500|505|510|505
101 +|**Growth rate,
102 +period on period**| |0.0100|0.0099|-0.0098
103 +|**Formula**| |//GT= V2011-V2011-1V2011-1//[[image:file:///C:/Users/axyli/AppData/Local/Temp/msohtmlclip1/01/clip_image002.png]]|//GT= V2012-V2012-1V2012-1//[[image:file:///C:/Users/axyli/AppData/Local/Temp/msohtmlclip1/01/clip_image003.png]]|//GT= V2013-V2013-1V2013-1//[[image:file:///C:/Users/axyli/AppData/Local/Temp/msohtmlclip1/01/clip_image004.png]]
104 +|**Growth rate,
105 +over 2 periods**| | |0.0200|0.0000
106 +|**Formula**| | |//GT= V2012-V2012-2V2012-2//[[image:file:///C:/Users/axyli/AppData/Local/Temp/msohtmlclip1/01/clip_image005.png]]|//GT= V2013-V2013-2V2013-2//[[image:file:///C:/Users/axyli/AppData/Local/Temp/msohtmlclip1/01/clip_image006.png]]
107 107  
108 108  When looking at the formulas, you can see that the same parameters that are used to call a transformation service can be used to code the resulting series, which makes it very easy for data processing systems to ensure consistency between calculations and coding of results:
109 109  
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