Respuesta :

azamunoz
The formula to figure out the percentage increase or decrease is: 
(new - old) / old * 100% 

new = 60 
old = 72 

(60 - 72) / 72 * 100% 
-12 / 72 * 100% 
= -1/6 * 100% 
= -0.1666... * 100% 
≈ -16.667% 

Because it is negative, that's a decrease. 

Answer: 
A decrease of about 16.7%

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