Finalbow

How do I produce a report for a "Collection" that I have created that shows the total value of the collection at the bottom of the list of items? In the help menu index there is a "keyword" search for "total value" but the topic that pops up is how to create a collection. It seems to be an incomplete help index because other keyworkds go to the "how to create collections" as well. All I want to do is compare my collections total purchase price to the current value, which I specify value in each coin/set I have entered. This of course is to track total value of the collection.