ccemsdparker
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In November, the school store sells 120 pens. In December, the store sells only 30 pens. What is the percent of change in pens sold from November to December?

Respuesta :

texaschic101
notice that it goes from 120 to 30....so we are dealing with a decrease

percent decrease = (original number - new number) / original number..* 100
                             = (120 - 30) / 120....* 100
                             = 90/120...* 100
                             = 0.75 * 100
                             = 75% decrease <===

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