At 252, I wore a very tight, uncomfortable 38B (basically because it's really, really difficult to find a 40B). At 205, I am comfortably wearing the same 38B, although the cup size is getting a little big. At goal, I'm afraid I am going to be back in training bras
I've gone from a 40DD to a 36d (might even be a C now but waiting to get fitted until I reach goal). It went down gradually and not as fast as I went down in clothes sizes.