The preposition of in mathematics designated multiplication as in one-third of six is two, in other words 1/3 × 6 = 2. Thus 6% per $100 would have units a pure number divided by dollars which is not what you want. Since 6 and 100 are pure numbers without units so is 6%. Cent comes from the Latin word centum which means hundred so 6 percent or 6% means 6 for every 100 or 6/100 = 0.06. The prefix per in percent has the same meaning. The preposition per in this situation means for each and designates a rate as in 60 miles per hour where the units are miles divided by hours or $125 per pound where the units are dollars divided by pounds. I thank you for your follow-up reply and answer. I suppose that it is incorrect to say or write that the rate is 6% per $1 but instead $0.06 per $1.00 or $0.06/$1.00 because the terminology 6% per $1.00 would not be correct. I want to thank you for the reply and answer. as in your case with dollars, the tax is $6 per $100, that is you pay $6 tax for every $100 you spend. In a specific situation where there are units involved. Percent means per one hundred or over one hundred so 6% is 6/100 = 0.06. If percentages are unitless, is there a reason?Ī percent is just another way of writing a fraction, it is a fraction with a denominator of 100. The dollar signs should cancel, but they do not.Ģ. Isn't it 6%/$1.00 X $1.00 or whatever the dollar amount is? If the tax is 6%/$1.00, why doesn't the dollar sign as a unit cancel after the multiplication? For example, the sales tax on pencils worth $1.00 is 6% X $1.00 is $0.06 or 6 cents plus $1.00 for a total of $1.06.ġ. The item is multiplied by the sales tax of 6%. If the sales tax on merchandise sold in stores is 6%.
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