Vanessa J.

asked • 12/16/15

Eric sold cell phones for $70. Eric increases his sale price by 100%. What is the sales price of the cell phone?

 please help.....i don't understand percent of change and percent of error 

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Reginald J. answered • 12/16/15

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100% means 100/100 or 1. If you multiply 1 by 70 it gives you 70. Because it's an increase, it is 70+70 (original+change) or $140.
 
 
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Reginald J.

Percent of error has nothing to do with this problem, but here's the formula:
 
absolute value((theoretical-experimental)/theoretical)
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12/16/15

Reginald J.

Times 100
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