Hello,
What I want to do:
I simply want to add an expression in Dynamic content of Text widget so that I can calculate proportion (see Figure below). However, it fails whenever I add using conditional sentences (==). I tried lots but nothing works.

Question:
- Could someone kindly teach me how to filter data using Expression? Is it even possible to add conditional sentences?
- Are there any instruction documents for how to use Expression of Dynamic Text widget. I have not seen anything in the homepage. Does it use SQL or Arcade expression?
I really appreciate your assistance.