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<p>[QUOTE=&quot;Phil Ham, post: 1912190, member: 5787&quot;]I use a spreadsheet with numerous tabs.&nbsp; The first tab has the entire collection organized by country, denomination, year, and mint mark.&nbsp; This tab includes numerous columns to record information on each coined acquired.&nbsp; The next series of tabs list the coin books that I have on each denomination and whether the hole is filled or not.&nbsp; I have also created&nbsp; tabs on proof sets, commemoratives, special issues, tokens, currency, and trading cards.&nbsp; Another tab summarizes the number and value of coins by country from the first tab.&nbsp; Another tab allows me to enter the information from coinflation, which is subsequntly linked to the market value of individual coins on the first tab.&nbsp; It takes the coinflation intrinsic value of the coin and adds a market valve to the formula.&nbsp; For instance, a 2014 bullion ASE might be $19.69 from coinflation plus $5 for its collector value.&nbsp; Another tab provides the currency rates from various countries versus $USD.&nbsp; It automatically updates foreign coin values, at least the ones without collector&#039;s value.&nbsp; I recently created a tab to list all the 20th century circulation coins and whether I have each one or not.&nbsp; One item on my bucket list is to have at least one of each 20th century circulation coins.&nbsp; I&#039;m 93.06% of the way there.&nbsp; I also created a tab to summarize my coin purchases from each year and determine my current ROI.&nbsp; I&#039;ve been collecting for quite some time and my ROI is 3.1276%.&nbsp; I do not consider it too bad for a hobby, as most hobbies cost you money.[/QUOTE]</p><p><br /></p>

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