Pass Parameters as Column Name

Hello,

Can you please help me with the below scenerio

Consider the below Table

V_New       I_new       D_NEW       A_NEW

1                    9              1                0

0                    1              0                9

1                    4              2                2

Now I wanted to create a Measure like this

We have a product slicer 

I_New to V_New

V_New to D_New

So when the user selects a value from this slicer I want calculate the attach rate 

So now the User selects I_New to V_New

now the measure should calculate 

var A = SUM(I_New),filter(TableName,V_New>0) 

var B = SUM(V_NEW),filter(TableName,V_New>0)

Retrun var A / var B

but if the User selects V_New to D_New

Its the same Formula but the filter condition should point to another column like this

var A = SUM(I_New),filter(TableName,D_New>0) 

var B = SUM(V_NEW),filter(TableName,D_New>0)

Retrun var A / var B

So the fiter selection is Dynamic based on the user selection. Unpivot the columns solution will not work 

Please help

Thanks in Advance