Remove RANKX from Total Row and Hide from Non Related Filters

Hello everyone,

I have the few Created Measures in my Database:

- StoreRank = RANKX(ALL(Table[Store Code],Table[Store Name]),CALCULATE(SUM(Table[Sales Volume])),,DESC)

 - ProductRank = RANKX(ALL(Table[Product Code],Table[Product Name]),CALCULATE(SUM(Table[Sales Volume])),,DESC)

I need to know:

1. When I Built a Table by Columns Store Code, Store Name, Sales Volume and Store Rank, how not to show any Ranks in the Total at the bottom, at the moment I get a number - 1 rank for the top store and also the total at the bottom also is given a Number - 1 Rank I want to make it blank in there.

2. If I populated a Table with Product details and chose to put in one column the Store Rank, it shows Rank - 1 for all the products, I want to make it Blank as well because I didnt chose any columns related to Store in this table.