On 11/26/05 3:07 PM, John Baltutis <baltwo at san.rr.com> wrote: > Color me confused, but 15% = 0.15, which when added to 28.05 = 28.2 (at > least that's consistent with what I learned in school 58 years ago). To do > what you want, simply use 28.05 * 1.15 = 32.2575. > > If Panther's calculator works the way you described, then, IMHO, it's the > one with the error, not the one in Tiger. The way Panther's calculator works is the way that every single scientific calculator I've ever used works.