ComputedColumn in views

Hello,

I have a view created in AOT. There are 2 numeric fields: TotalPhysical and TotalMin.

Now I want a new field in my view that gives me the value "OK" when TotalPhysical < TotalMin. Else it will give the value "NOK".

I was trying to achieve this with "SysComputedColumn::if" but I don't find any information about this on how to use it. Can somebody help me with this question?

Regards,

Luk