Remember values from last week's run

[peterkumar]

Good Afternoon - 

I run a weekly qlik sense dashboard that calculates the number of open tickets so the tech team can resolve them.    

When the month changes, I need to show the count of last month's open tickets as a bar chart.

So in May, I want to show April's open ticket count; in June, I need to show April and May open ticket count. 

How do I remember the count from earlier dashboard runs?

Can I store it as a variable from one week's run to the next?  

Or do i write to a qvd and read it when the month changes?

Any other options?  

Thanks!