DAX

Hi. First of all you need to understand that any time intelligence calculations work with a Date Table. Date table are necesary so the engine can run specific time calculations la year to date. Once you hace this data model prepared you can create a measure like this:

Measure YTD =
CALCULATE (
    [Measure Unit Sales],
    DATESYTD (
        'DateTable'[Date],
        "04/30"
    )
)