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Lets say I want to represent 20 Percent

What do you call/name the "0.2" and "20%" notations

I am calling them Fractional and WholeValue notations for the time being, but wondering if there was something better.

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    $\begingroup$ I call them $1/5$ $\endgroup$ – Kopper Jun 8 '11 at 22:35
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    $\begingroup$ Decimal and percentage, perhaps? $\endgroup$ – Alex Becker Jun 8 '11 at 22:37
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I would call "0.2" the decimal notation, and "20%" simply the percentage notation.

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  • $\begingroup$ (1/2) I think there are two distinct meanings of "percentage" that are revealed by the "decimal notation" vs "proportion" answers to this question. Let's call them notation and description. Percent(age), decimal and fraction(al) are all forms of notation--ways to visually represent a number. But a number can be a decimal and also a percentage: 0.2%, for example. So calling 0.2 a "decimal" doesn't tell us that it is not a percentage, it just describes the notation. 0.2% is a decimal percentage, and 2/10% is a fractional percentage. $\endgroup$ – Stew May 19 '16 at 18:53
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    $\begingroup$ (2/2) In the case of 0.2% and 2/10%, the "%" describes the preceding numbers--it tells us that we are talking, in both cases, about a proportion of measured thing, and that the 0.2 or 2/10 are the numerator, and 100 is the denominator, of that proportion: 0.002. Similarly, describing a number 0.2 as a proportion tells us it is not a percentage. "The proportion M&Ms in the candy jar is 0.2." Means the same thing as "20% of the candy jar is M&Ms". Compare to "The decimal of M&Ms in the candy jar is 0.2."--not only is this sentence different in meaning, it is nonsensical. $\endgroup$ – Stew May 19 '16 at 19:20
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I would call "0.2" a proportion and "20%" a percentage.

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