Dax Query to get last sex month for each raw

[shaher111]

I have this table , what i need to do to get new hire turn over for each month , the formula is  : ( Seperated employees within 6 months  / number of new hires within 6 months )   for seperated is good and comes calculated from the source for each raw but for new hires not calculated so i need to calculate it for each raw lined with seperated to be able to divide them  so for example for Aug we have 1 seperated and should sum of 2+6+0+5+1+3  last 6 month including Aug sor new hiire should be 17 and turnover new hir will be : 1 / 17

[_elbpower]

Last 6 Months Sum Divide = 
VAR SelectedDate = MAX('YourTable'[Date])  // Get the selected date - Here you can get the current date or selected from slicer
VAR StartDate = EOMONTH(SelectedDate, -6) + 1  // Calculate the start date for the last 6 months
VAR EndDate = SelectedDate  // The selected date is the end date
RETURN
    CALCULATE(
       DIVIDE( SUM('YourTable'[Column1] ), SUM( 'YourTable'[Column2]),0),
        FILTER(
            'YourTable',
            'YourTable'[Date] >= StartDate && 'YourTable'[Date] <= EndDate
        )
    )