Please add the option to display totals (sum) in charts (bar or pie) based on list entries.
A lot of people (from home users to managers) use lists for tracking all kind of stuff and would like to have also a graphical representation of the totals from those lists.

E.g.: list of items and $ sales per day => graph showing the total (sum) of $ sales for each item.

There are a few workarounds floating around the internet, but they are not easy to implement at all. We need an OOB solution.