I do log my charity quilt and blanket donations on a calendar, but never add them up. That is because some of them I only have a hand in instead of making them from start to finish. And many of them are fleece with crochet edging.
I donated 2 of my best quilts to the Bible Camp quilt auction and another one to campus ministry. Those had traditional bindings. For Project Linus I usually use a fold over of the backing to the front and stitch down binding. The only quilts that I "birth" are those made by our quilt guild for a children's charity.
One older lady volunteers to hand stitch bindings for charity, so when Linus gets unfinished quilts, I do the machine sewing of the binding in preparation for her work.
There seems to be no set formula for me -- each charity quilt has its own situation.