Decomposition tree display Units

Team,

I have below requirement 

have a slicer say 1) Volume 2) Value   and created a measure called Analysis  when you choose volume , it will show Volume data and when you choose Value , it will show Value data , and added Analysis measure in Decompostion tree 

Now when i select Volume , decomposition tree should  show display units in Kgs and when i select Value , decompsition tree should change the display units in K(Thousands) or M(Millions) . 

Basically i need an option of change display units of decomposition tree based on the slicer.