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Message: Emoticon Listing HTML Help	[quote]Dontcha love percentages? I mean, I walk into a store to get a soda and a candy bar and what do I see? Soda that says I get 20% more for free, and a candy bar that advertises 25% more for free. It sounds like I get more free stuff from the candy bar, right? Well, the candy bar is only 1.5 ounces "normally" while the soda is 20 ounces "normally". 20% of my soda makes it 24 ounces, while my candy bar only gained a measly .375 ounces. Now, if I bought a soda that claimed I was getting 20% more for free, and it was 24 ounces, how would I figure out how big the old "rip-me-off" bottles were? Since I'm getting 20% more for free, I could try multiplying by .8 (80%), but that would only give me 19.2 ounces, which is not correct. Instead, I have to divide by 1.2 (120%) to get the regular 20 ounce bottle. Here's the math: X = original size X * 120% = 24 ounces (Divide both sides by 1.2 and we get:) X = 24 ounces / 1.2 The BS works just the same except that since we could be either bigger or smaller, we need to figure out both 15% smaller AND 15% larger.[/quote]
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Tim_Myth
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This message was updated on 6/2/2003 3:42:59 PM by Tim_Myth

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replied on: 6/2/2003 3:41:48 PM

Dontcha love percentages? I mean, I walk into a store to get a soda and a candy bar and what do I see? Soda that says I get 20% more for free, and a candy bar that advertises 25% more for free. It sounds like I get more free stuff from the candy bar, right? Well, the candy bar is only 1.5 ounces "normally" while the soda is 20 ounces "normally". 20% of my soda makes it 24 ounces, while my candy bar only gained a measly .375 ounces.

Now, if I bought a soda that claimed I was getting 20% more for free, and it was 24 ounces, how would I figure out how big the old "rip-me-off" bottles were? Since I'm getting 20% more for free, I could try multiplying by .8 (80%), but that would only give me 19.2 ounces, which is not correct. Instead, I have to divide by 1.2 (120%) to get the regular 20 ounce bottle.

Here's the math:

X = original size
X * 120% = 24 ounces
(Divide both sides by 1.2 and we get:)
X = 24 ounces / 1.2

The BS works just the same except that since we could be either bigger or smaller, we need to figure out both 15% smaller AND 15% larger.

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