@Tonster521  Thanks very much. That provides me with the rational explanation that I was looking for. Appreciate the information, and the link. Very helpful!

@GailL1 Thanks for the link, that's helpful. Quite involved, but it certainly helps in understanding how they do their estimates.

@fffred  thanks very much for your response. I was unaware of the tools you've highlighted here - for more accurate results on what payments would be. Appreciate these insights, I'll make note of these and follow up with them. I appreciate the respon...

@GailL1  you have missed the point(s) made. I never said that Medicare had anything to do with estimates on the yearly statement. What I said was that your "remembering" something about income-2-years-ago may have been that in your mind you had confl...

Thanks for the response @GailL1 , I understand your reasoning (and in my case - that is true, I have reduced my income by working a lesser schedule so it does make sense the Yearly Report, because of assumptions, would change. Can't say if that is th...