DAX measure not totally working missing total percentage values

[Invesco]

Hi Experts 

The following DAX measure nearly works but does not return the % Values for the red highlighted section as shown in the image. I cannot see my error in the measure below

Previously Level 3 was not working now Level 2 is not returning back the expected result. All the slicer and filter are in the same table.

Measure 

Packs Market Share =

VAR _PacksCash = [Packs]

VAR _All_PacksCash_Product =

CALCULATE([Packs], removefilters(dev_hpa_sales_2[hpa_national_desc],dev_hpa_sales_2[level_1_element_desc],dev_hpa_sales_2[level_2_element_desc],dev_hpa_sales_2[level_3_element_desc]))

VAR _All_PacksCash_Market_1 =

CALCULATE([Packs], removefilters(dev_hpa_sales_2[level_1_element_desc],dev_hpa_sales_2[level_2_element_desc],dev_hpa_sales_2[level_3_element_desc]))

VAR _All_PacksCash_Market_2 =

CALCULATE([Packs], removefilters(dev_hpa_sales_2[level_2_element_desc],dev_hpa_sales_2[level_3_element_desc]))

VAR _All_PacksCash_Market_3 =

CALCULATE([Packs], removefilters(dev_hpa_sales_2[level_3_element_desc]))

VAR _Pct_of_Product =

    DIVIDE(_PacksCash,_All_PacksCash_Product,0)

VAR _Pct_of_Market_1 =

    DIVIDE(_PacksCash,_All_PacksCash_Market_1,0)

VAR _Pct_of_Market_2 =

    DIVIDE(_PacksCash,_All_PacksCash_Market_2,0)

VAR _Pct_of_Market_3 =

    DIVIDE(_PacksCash,_All_PacksCash_Market_3,0)

VAR _Result =

SWITCH(TRUE(),

        ISINSCOPE( dev_hpa_sales_2[level_2_element_desc]), _Pct_of_Market_3,

        ISINSCOPE( dev_hpa_sales_2[level_2_element_desc]), _Pct_of_Market_2,

        ISINSCOPE( dev_hpa_sales_2[level_2_element_desc]), _Pct_of_Market_1,

        ISINSCOPE( dev_hpa_sales_2[dataset_desc]), _Pct_of_Product,

_Pct_of_Product )

Return

   _Result