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Q&A #5442

Teachers' Lounge Discussion: Percentage of change

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From: Loyd <Loydlin@aol.com>
To: Teacher2Teacher Public Discussion
Date: 2003052210:34:10
Subject: Re: PERCENTAGE OF CHANGE

On 2003052204:49:51, ADEL wrote:
>	
>HOW CAN I CALCULATE THE PERCENTAGE OF CHANGE FOR TWO NUMBERS?
>  EXAMPLE: SPARE PARTS CONSUMTION 2002 = 130000
>           SPARE PARTS CONSUMTION 2003 = 120000
>



This is what is known as percent of decrease.  You divide the decrease
by what you decreased from:

For example:  (130000-120000)/130000= 10000/130000 = approx  .0769. 
You can convert that to percent by multiplying by 100.  Thus, the
answer is 7.69%

Percent of increase is the same idea.  Divide the increase by what you
increased from.  

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