Based on your description, I have created it on a sample data:
Following is the measure:
VAR _Filter =
'Table'[Date Changed] = "Sch Ship Date"
VAR _Summary =
VAR _Total = SUMX(_Summary,[Count])
If it helps, please mark it as a solution. Kudos would be a cherry on the top 🙂 If it doesn't, then please share a sample data along with the expected results (preferably an excel file and not an image)