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help what are the answers im so stuck!

$75 to $25

7,500 people to 8,200 people

Last year, Sandro bought an ipod for $145. Now the price is $199. What is the percent of change?

The price of a share of stock was $97.50 on Monday. By Friday that same week, the price had decreased to $85.50. What was the percent of change

Respuesta :

sqdancefan

Answer:

  see below

Step-by-step explanation:

A percentage change is computed as follows:

  percent change = ((new value) -(original value))/(original value) × 100%

For your first one, this looks like ...

  percent change = ($25 -$75)/$75 × 100% = (-50/75) × 100% = -0.667×100%

  percent change = -66.7%

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When there are a lot of similar calculations to do, I like to use a spreadsheet. See below for the other percentage changes (rightmost column).

Ver imagen sqdancefan

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