so I have a beast mode that calculates the ratio of committed orders

% committed count = SUM(CASE WHEN % complete > 0 THEN 1 ELSE 0 END) / COUNT(Order #) 

but I want to create a Beast Mode to calculate the same ratio but just for this MTD, so I tried this, but it return 0

CASE
WHEN YEAR(CURDATE()) = YEAR(MONTH_END_DATE) AND MONTH(CURDATE()) = MONTH(MONTH_END_DATE) 
THEN
 % committed count
ELSE 0
END