Thanks for sharing these Vagablonde.
Seems like everywhere you look someone made another one of these calculators.
I have never seen the need for it, as calculating percentages is very simple. I just do the calculations in my head, but I have always been good with numbers, names not so much. I can remember phone numbers we had when I was just a small child. If someone asks me for directions, It is easier for me to tell them the GPS coordinates than it is to tell them to turn left on left on Rio Grande, then right on Congress ave. LOL.
I guess these are handy for those who, should I say, are mathematically challenged. Now if they came out with a name calculator, that I could use.