
I made this app, but i'm stuck on how to use countif on checkbox.
i want to count how many checkboc that already check and i want to present the number on the box with (?). how to use the code countif?

this is my database (sharepoint list), but i cant use counta because when people uncheck the checkbox it will be "-" where if poeple check the checkbox it will be "C". so if i do use counta the "-" will get count too. (i want to count only the "C")