Beginner- i want to carry out a case statement to create a new coln how do i do it

i want to replicate something like this in knime how do i do it

CASE

WHEN Salary <= 12570 THEN 0

WHEN Salary <= 20000 THEN (Salary - 12570) * 0.10

WHEN Salary <= 50000 THEN (20000 - 12570) 0.10 + (Salary - 20000) 0.20

ELSE (20000 - 12570) 0.10 + (50000 - 20000) 0.20 + (Salary - 50000) * 0.30

END AS Tax