Count row that currently display with custom filter

My table can be filtered using a custom search bar and a checkbox (purple arrow). I’d like to count the results of the filter. I spotted the right number on the yellow arrow. How could I get this number to appear as a search result in my app?

Best Regards,
Pongsathorn C.

While it’s not exactly what you are asking for, I achieved similar outcome by using the filter formula on an array and then getting it’s length.