Oh, it doesn't even get to the juicy bit of percentages. Can't remember how physical calculators deal with them, but software calculators deal with them differ

Oh, it doesn't even get to the juicy bit of percentages. Can't remember how physical calculators deal with them, but software calculators deal with them differently. To the point that iOS calc and MacOS calc are different. And variations of Windows calc (regular/scientific/engineering) are different