How to get start and end values based on date(s) in a Qlik Sense Visualization expression? (#2)

[#1]

I have already asked a question like this before (How to get start and end values based on date(s) in a Qlik Sense Visualization expression?), but it was unanswered and might have been too complicated.  Let me try a different way....

Given my table, how can I look up the values to use in my pivot table's expression when the user filters on [Transaction Date]?

[Gysbert_Wassenaar · Accepted solution]

I think you're looking for the FirstSortedValue function: FirstSortedValue - chart function ‒ Qlik Sense

[#3]

Thank you, thank you, thank  you!!!!!!