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	<id>https://wiki.treasurers.org/w/index.php?action=history&amp;feed=atom&amp;title=De-compound</id>
	<title>De-compound - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://wiki.treasurers.org/w/index.php?action=history&amp;feed=atom&amp;title=De-compound"/>
	<link rel="alternate" type="text/html" href="https://wiki.treasurers.org/w/index.php?title=De-compound&amp;action=history"/>
	<updated>2026-05-26T06:37:18Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.40.0</generator>
	<entry>
		<id>https://wiki.treasurers.org/w/index.php?title=De-compound&amp;diff=53551&amp;oldid=prev</id>
		<title>Doug: Add alternative spelling.</title>
		<link rel="alternate" type="text/html" href="https://wiki.treasurers.org/w/index.php?title=De-compound&amp;diff=53551&amp;oldid=prev"/>
		<updated>2023-11-10T20:08:07Z</updated>

		<summary type="html">&lt;p&gt;Add alternative spelling.&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en-GB&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 20:08, 10 November 2023&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l9&quot;&gt;Line 9:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 9:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It calculates a compound rate per period for a shorter period of time, based on a total rate of growth for a longer period.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;It calculates a compound rate per period for a shorter period of time, based on a total rate of growth for a longer period.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;It is sometimes written as ''decompound''.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l98&quot;&gt;Line 98:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 100:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Simple interest]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Simple interest]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Financial_products_and_markets]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Long_term_funding]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:The_business_context]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Category:The_business_context]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Corporate_finance]]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Investment]]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Long_term_funding]]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Financial_products_and_markets]]&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Doug</name></author>
	</entry>
	<entry>
		<id>https://wiki.treasurers.org/w/index.php?title=De-compound&amp;diff=13817&amp;oldid=prev</id>
		<title>imported&gt;Doug Williamson: Create page.  Sources: linked pages.</title>
		<link rel="alternate" type="text/html" href="https://wiki.treasurers.org/w/index.php?title=De-compound&amp;diff=13817&amp;oldid=prev"/>
		<updated>2021-03-27T15:54:34Z</updated>

		<summary type="html">&lt;p&gt;Create page.  Sources: linked pages.&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;''Compounding.''&lt;br /&gt;
&lt;br /&gt;
To compound means:&lt;br /&gt;
* to calculate interest, return or growth on an accumulating total, &lt;br /&gt;
* including earlier amounts of interest, return or growth.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
De-compounding is the reverse process.&lt;br /&gt;
&lt;br /&gt;
It calculates a compound rate per period for a shorter period of time, based on a total rate of growth for a longer period.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;span style=&amp;quot;color:#4B0082&amp;quot;&amp;gt;'''Example: de-compounding calculation'''&amp;lt;/span&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Total growth for a two-year period = 69%. &lt;br /&gt;
&lt;br /&gt;
What is the average compound rate of growth per year, for the two years?&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Rate per year = (End amount / Starting amount)&amp;lt;sup&amp;gt;(1/n)&amp;lt;/sup&amp;gt; - 1&lt;br /&gt;
&lt;br /&gt;
''Where:''&lt;br /&gt;
&lt;br /&gt;
n = number of years&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Let's say the starting amount = $100m&lt;br /&gt;
&lt;br /&gt;
Total growth for two years = $100m x 0.69&lt;br /&gt;
&lt;br /&gt;
= $69m&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
End amount = $100m + $69m&lt;br /&gt;
&lt;br /&gt;
= $169m&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The rate per year is: &lt;br /&gt;
&lt;br /&gt;
= (169 / 100)&amp;lt;sup&amp;gt;(1/2)&amp;lt;/sup&amp;gt; - 1 &lt;br /&gt;
&lt;br /&gt;
= 1.69&amp;lt;sup&amp;gt;(1/2)&amp;lt;/sup&amp;gt; - 1 &lt;br /&gt;
&lt;br /&gt;
= '''30%'''&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Check:&lt;br /&gt;
&lt;br /&gt;
Growth for the first year:&lt;br /&gt;
&lt;br /&gt;
= $100m x 0.30&lt;br /&gt;
&lt;br /&gt;
= $30m&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Balance at the end of the first year:&lt;br /&gt;
&lt;br /&gt;
$100m + $30m&lt;br /&gt;
&lt;br /&gt;
= $130m&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Growth for the second year:&lt;br /&gt;
&lt;br /&gt;
= $130m x 0.30&lt;br /&gt;
&lt;br /&gt;
= $39m&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Balance at the end of the second year:&lt;br /&gt;
&lt;br /&gt;
$130m + $39m&lt;br /&gt;
&lt;br /&gt;
= $169m&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Total percentage growth for the two-year period:&lt;br /&gt;
&lt;br /&gt;
169/100 - 1&lt;br /&gt;
&lt;br /&gt;
= 1.69 - 1&lt;br /&gt;
&lt;br /&gt;
= 0.69&lt;br /&gt;
&lt;br /&gt;
= '''69%'''&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== See also ==&lt;br /&gt;
* [[Compound]]&lt;br /&gt;
* [[Compound Annual Growth Rate]]&lt;br /&gt;
* [[Compounding effect]]&lt;br /&gt;
* [[Compound interest]]&lt;br /&gt;
* [[Effective annual rate]]&lt;br /&gt;
* [[Interest]]&lt;br /&gt;
* [[Interest rate]]&lt;br /&gt;
* [[Nominal annual rate]]&lt;br /&gt;
* [[Simple interest]]&lt;br /&gt;
&lt;br /&gt;
[[Category:The_business_context]]&lt;br /&gt;
[[Category:Corporate_finance]]&lt;br /&gt;
[[Category:Investment]]&lt;br /&gt;
[[Category:Long_term_funding]]&lt;br /&gt;
[[Category:Financial_products_and_markets]]&lt;/div&gt;</summary>
		<author><name>imported&gt;Doug Williamson</name></author>
	</entry>
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