Reverse Cumulative sum issues

[MikeDubya]

I have a calculated column that performs a reverse cumulative total. Without adding the reverse cumulatative column, I have a list of dates and whether a pilot landed during the day.  

When I add my Reverse Column, it adds dates with blank LNDG Day and places the total in the Reverse Column:

Here is my Dax Code:

Reverse Cumulative Total =

CALCULATE(

    SUM(Pilot[LNDG Day]),

    FILTER(ALL(Pilot[Depart Date (Z)]), Pilot[Depart Date (Z)] >= MIN(Pilot[Depart Date (Z)])))

What am I missing in my DAX code that would prevent the "12's" from showing up? Clearing I just want the 0, 0, 1, 3, not 0, 12, 0, 12, 1, 12, 12, 3 (from bottom up).

TIA!

[amitchandak]

@MikeDubya , you should always prefer a separate date table joined with date of your table

Reverse Cumulative Total =
CALCULATE(
SUM(Pilot[LNDG Day]),
FILTER(ALL(Date), DateDate >= Max(Date[Date])))

Windows function can help

Power BI Window function Rolling, Cumulative/Running Total, WTD, MTD, QTD, YTD, FYTD: https://youtu.be/nxc_IWl-tTc

Running Total/ Cumulative: https://www.youtube.com/watch?v=h2wsO332LUo&list=PLPaNVDMhUXGaaqV92SBD5X2hk3TMNlHhb&index=41