The probability should be given as 0.03 -- that might reduce your confusion!
Perhaps you should make this more clear in the calculator, to avoid people mistakenly making bad choices? (Or just change it to percent. Most people are more comfortable with percentages, and the % symbol will make it unambiguous.)
Perhaps you should make this more clear in the calculator, to avoid people mistakenly making bad choices? (Or just change it to percent. Most people are more comfortable with percentages, and the % symbol will make it unambiguous.)