Percentage Calc Based on Three Values (Pass, Fail, Not Inspected)

Afternoon,

I'm looking to put a Pass Rate Calc in my file that will allow for three values in a single column - Pass, Fail and Not Inspected.

For example, lets say I have a sample of 150 cars; 50 of those cars passed inspection, 50 of those cars failed inspection and the remaining 50 were not inspected. As such, my pass rate on this is 50%.

I have the below DAX, which I assume should work;

Calc Inspection Result Pass Rate =
DIVIDE(
CALCULATE( COUNTROWS('EXTRACT') , 'EXTRACT'[Overall Result - Post Appeal] = "Pass" , COUNTROWS('EXTRACT') , 'EXTRACT'[Overall Result - Post Appeal] = "Fail") ,
CALCULATE( COUNTROWS('EXTRACT') , 'EXTRACT'[Overall Result - Post Appeal] = "Pass") ,
BLANK()
)

But I keep getting the below error message - The True/False expression does not specify a column. Each True/False expressions used as a table filter expression must refer to exactly one column.

Any ideas?