Adding a Formula After an Array?

Hi again,

I was wondering if there's a way to have a formula calculate at bottom of an array formula? With the obvious kicker being that the array can vary in length.
I have attached a sample book and expected results, although it doesn't necessarily highlight the issue clearly because the array in question changes regularly which makes adding a formula to the bottom of it very difficult (for me at least)

I am using MS365 Excel v2208 on PC.

Thanks for your time.