average requests received per week

Hello,

I'm working on a dashboard to show the health of my service team. 

One of the measures I would like to show is the average request the team receives per week. I have a table with all the requests as well as the date created per each. PowerBi automatically splits this date by a hierarchy of year, quarter, month, and date. So I've been able to create a simple line chart to show the total number of requests received by month. Is there a way to add a title with the calculation of what is the average request received per week?

Thank You!