Translate this Tableau calculation into a DAX Expression

Hi all,

I am having trouble translating this calcualted formula into a DAX expression: 

Account Group =
if CONTAINS([Acc Level 1 Des],"Comp") then "Compensation"
//ELSEIF CONTAINS([Acc Level 2 Des],"Headcount") then "Compensation"
ELSEIF CONTAINS([Acc Level 3 Des],"Null 2") then "Null 2"
ELSEIF CONTAINS([Acc Level 1 Des],"Var") then "Variable"
ELSEIF CONTAINS([Acc Level 1 Des],"Oper") then "Operating"
else [Operating Levels (group)] END

Any help would be greatly appreciated.

Thank You!