Feature that would allow you determine how much a share has risen or fallen quickly. Drag a line from one point to another and would give you the % difference and also the steps to get there. This feature already exists on many graphs.
I would really like to see such a feature added, I have to always do a small calculation to get the % and amount difference. This is such a small but very useful feature that i really use a lot.
An example of how this feature works can be seen on https://www.dailyfx.com website on any of their graphs.
on the left hand side there is a ruler and you
