Lately I had a task suitable for Wolfram Alpha. Calculate the inflation factor in Germany from 1973 to today. The data is available. Alpha shows a diagram: http://www.wolframalpha.com/input/?i=inflation+rate+Germany I can't figure out how to let it calculate the cumulative factor, though. At least i'd like to get a table of the numbers to do it myself but even the source aren't helpful here.