Respuesta :

MsRay

Answer:

18%

Step-by-step explanation:

Percent change can be found using the following formula:

[tex]\frac{original-new}{original}*100[/tex]

Original represents the initial cost where new represents the new cost.  We multiply the answer by 100 to get the percentage:

[tex]\frac{92-78}{78}*100[/tex] = 18%

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