Lester - I'd like to help you if I could. I'm not saying I'm incompetent if I don't help you, I'm just saying I have no direct knowledge or experience that is relevant.
My guess is that this forum is a peer support forum. By that I mean that I think the purpose of this forum is not to facilitate PPA organization to member communications, but to have users help other users. Of course I don't know for sure, I'm not sure I've ever heard the purpose of the forums, but my explanation makes sense to me.
As for me, I'm jut a po' ole user like you. Nothing special. I've been told I have a keen eye for spotting spam, so a bit was set somewhere and I gained the title of "moderator." All I can do is delete spammy messages.
I've never used, or even seen the calculator. After your first message I did some research of some sort and found the support page on the PPA's web site. I used Google. From there I forwarded you the email address you saw above.
I'm sorry I have not helped you. But I responded to your message that mentioned my name. I offered you an explanation as to why I cannot help you. Other than looking on the PPA website for information I do not currently have, I do not have access to any contact information for anyone who can help you.
I hope you are able to resolve your problem.