Thanks, we got it
It's neither right nor wrong, really. It's just a simple excel spreadsheet that has basic simple formulae to tell you what a given food percentage works out to in lb, for a specified body weight. Thing is though, percentage to feed isn't an exact science

And the 2-3% rough guideline that's often talked about is really a
rough guideline to which there are many many exceptions, especially amongst puppies and adolescent dogs (not that that would stop anyone entering an amount greater than 3%, but one has to have sufficient raw feeding and spreadsheet knowledge to do that).
It's main purpose though seems to be to ensure that you feed 10% of the dog's food as organ meat, and 5% as liver.
Anyway, there's no problem with the speadsheet per se. But the percentages it uses are very open to debate. I have no problem with you posting a link to it if you upload it somewhere else online, but we wouldn't upload it on Boxerworld - as that would imply indorsement of the diet stipulations behind it (i.e. how much organ meat, liver and food overall a dog should have relative to his body weight). As above, whilst the stipulations of your spreadsheet aren't "wrong" nor harmful, they're not right for every dog either (nor something all mainstream raw theories would support). That's not a problem for any individual wishing to have a calculator, but it is a bit of a problem for a site like this to endorse (which would be assumed, were it uploaded here).