You're very welcome, Ludolf.
Job done as far as the OP is concerned, but I would caution anyone wishing to take this further that previous posts appear to conflate CDA with CDFA. They are different. CDA gets you from cruise alt to instrument pattern alt. CDFA gets you from there to MDA. Ideally, they should blend into one smooth continuous descent but, just like the initial, intermediate and final segments of an instrument approach, they are different things.