1.  07/30/2009, 05:21 PM Originally Posted by Nurgling This sounds like something built for accountants and not mathematicians or engineers. Most consumer-class handheld calculators are programmed to do "percent add-on" and "percent discount" functions when the keys are entered as described by the OP, i.e. 100 + 5 % returns 105. This is intended to facilitate extremely common commercial calculations such as sales tax add-on and quick percent discount calculations, with user input that is highly intuitive for many people. More advanced math/scientific calculators follow a strict "order of operations" approach and return 1.05 with identical key entries. These are just two different conventions on how the % key can function. There is no universal right or wrong. I think it is odd that Palm chose the less consumer-oriented approach since I would think that the Pre calculator would be used most frequently in exactly those kind of quick commercial applications, where people will expect the same behavior as a common handheld calculator. I agree with a previous poster that the best approach is to avoid the % key altogether and enter: 100 * 1.05, if you want to add 5% to 100.
2.  07/30/2009, 05:30 PM Originally Posted by krazydav Much easier to multiply by 1.05... my \$0.02 Exactly! Any tartard should know that you move the decimal to the left 2 places to make a percentage and add a 1 if you want to add a percentage to something. Using a calculator 101: 100 + 5% is entered as 100*1.05. You will get the correct answer on any calculator.
3.  07/30/2009, 05:35 PM My TI-89 gives me 2001/20, which equals 100.05.
4.  07/30/2009, 07:15 PM Originally Posted by mherald81 My TI-89 gives me 2001/20, which equals 100.05. What's weird is I did it on my Pre, and it comes out 105, not 100.05, like the OP. Do I have a smarter Pre?
5.  07/31/2009, 01:24 AM Please do us all a favor. If you want to calculate: 100 + (5% of 100) Do this: 100 * 1.05
6.  07/31/2009, 02:04 AM So I was at work playing around with a few calculators and found out that the OP hs a point. I apologize for my previous statement. Stupid Goat!!! -Goatin' Ain't Easy-
7.  07/31/2009, 04:42 AM Originally Posted by PedroTheGoat So I was at work playing around with a few calculators and found out that the OP hs a point. I apologize for my previous statement. Stupid Goat!!! You are one classy goat! Thanks!
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