measure which change column reference

Dear All,

i have two tables:

1) Table1

2) Table2

Tables are in a one-to-many relationship with code as the key.

What I need to achieve is a measure where:

if sumx(value) is a positive value, then assign it to Recl_Code_A, else Recl_Code_B.

If I filter the following table visual for dates 01/01/2024-31/03/2024, then:

If I filter the following table visual for dates 01/04/2024-30/04/2024, then:

Any idea?

Thank you a lot