COUNTA counts the number of non-blank values in a column, including text, numeric values, and logical values, even counts Boolean values where only Count will not count Boolean data type
Number of Reviews = COUNTA('Table'[Review Status])
When you need to count all non-blank values, regardless of the data type (text, numbers, etc.).
Go to report view
Insert a card
drag the newly created measure "CountA" from the date pane into card
You will get the CountA displayed in the card