Dear employer,
As I told to you via chat, I have been conducting some research about how to do the graph that you described to me yesterday, and with the information from this research I am now confident I can do it. The price will be still $30 as originally proposed, however I would like your permission to display this project in my profile here at freelancer once it is done as one of my highlighted projects, because is a very special one.
Kind regards.
Oliver