Using mean Average in formula

users
#1

I'm a home user with not a lot of spreadsheet experience.

I've got a graph that includes a mean average line. I'd like to take the
value of that line (e.g. MV=180) and use it in a formula (e.g. x=4*MV+16)
and use that answer to populate a field.

How do I get MV into the formula?

#2

Here is a screenshot of the graph I have. Notice the mean value line
currently located at 184 on the Y axis.

<http://nabble.documentfoundation.org/file/n4136263/07_PM.png>