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Bad math?

Berean

By Berean
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Berean

Berean

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Posted

I just saw this on Amazon.com in regards to a book I'm considering buying. According to Amazon if you buy the Kindle version of the book you will receive a 105% discount. Wouldn't that mean that Amazon will actually pay you to buy the Kindle version of the book? Not sure if someone at Amazon is bad at math or the program has some kind of bug in it. The book can be found here.

By the way, anyone know the math formula on how to find the percentage of something? 

appy

appy

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Actually kindle is offering the book for 8.54, or you can purchase it from other sellers for a higher price.  As for the book, it is a great read.  I read it years ago and enjoyed it very much.  There are 4 books in the series.  The one you linked to, is book #2 of the series.  Worth purchasing.

I'm sure someone will correct me, but I am under the impression that Amazon is sorta like eBay in that you can sell stuff through Amazon.  I didn't click elsewhere, but I have the impression from kindle that it kinda operates like a book club for a membership fee, and then you can get more books at a discounted price. But there is a catch somewhere in there, to prompt more purchases.

Book # 1  All things bright and beautiful,
Book # 2 All creatures great and small,
Book # 3 All things wise and wonderful,
Book # 4 The Lord God made them all.
 

 

 

johnthebaptist

johnthebaptist

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Posted
38 minutes ago, Berean said:

I just saw this on Amazon.com in regards to a book I'm considering buying. According to Amazon if you buy the Kindle version of the book you will receive a 105% discount. Wouldn't that mean that Amazon will actually pay you to buy the Kindle version of the book? Not sure if someone at Amazon is bad at math or the program has some kind of bug in it. The book can be found here.

By the way, anyone know the math formula on how to find the percentage of something? 

I believe you are correct. If you divide the print list price ($8.99) by the Kindle price ($8.54). you come up with 1.05. I suspect that is where the 105% came from. 

johnthebaptist

johnthebaptist

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Posted
48 minutes ago, Berean said:

I just saw this on Amazon.com in regards to a book I'm considering buying. According to Amazon if you buy the Kindle version of the book you will receive a 105% discount. Wouldn't that mean that Amazon will actually pay you to buy the Kindle version of the book? Not sure if someone at Amazon is bad at math or the program has some kind of bug in it. The book can be found here.

By the way, anyone know the math formula on how to find the percentage of something? 

 

4 minutes ago, johnthebaptist said:

I believe you are correct. If you divide the print list price ($8.99) by the Kindle price ($8.54). you come up with 1.05. I suspect that is where the 105% came from. 

I believe the correct math would be this:

You are saving $9.45 from the list price of $17.99 if you buy the Kindle version, which costs $8.54. That would be a savings of 52.5% ($9.45/$17.99*100).

Jayne

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Posted

To find the percent of increase or decrease of an item, do two things.  Find  the difference between the old price and the new price and then divide by the original price.

Example.  A purse used to cost $120.  After Christmas, it went on sale for $90.  First, find the difference.  That would be $30.  Then divide $30 by the original price.  30 divided by 120 = .25 which is a 25% discount.

Same thing with an increase.  A store bought some jackets at $40 each.  They sold them for $65.  Get the difference = $25.  Then divide by the original cost.  25 divided by 40 = .625.  That's a 62.5% mark up.

For your book, the original price was $17.99.  It's on sale for $8.54.  Find the difference = $9.45.  That what you save.  The percent of decrease or percent of saving is $9.45 divided by $17.99.  That would be .525 or a 52.5% savings.

Yes, Amazon has done some bad math here.  Really bad.  LOL.  

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