[SOLVED] Need if formulas no need to depend on helper columns

Hello,

I have attached a file here. The column Z and AA are depended on column W, X, and Y. I need to delete W, X, and Y as my boss hates the columns. I am looking for formulas on column Z, AA and AB that do not need to depend on column W, X and Y.

Hope I explained it good enough.

Thanks for the help.

Jackson