Pivot table average

Hi my name is Patricio, I need please if you can help me with something that I have not been able to do.

I need to get the total average, in this example it gives me 2.12 average in the header because it calculates all the release details of each project, but I just want to average the totals of the pivot table (1+2.5+1+2.72+2.58 = 1.96) so that this 1.96 is shown in a panel as a single value.

How do I want to show this value:

image

Is this possible?

Thank you very much for your help
Patricio