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Suppose when the price of coffee beans goes from $1 to $1.20 per pound, production increases from 90 million pounds of coffee beans to 110 million pounds per year. Using the mid-point method, the percentage change in quantity supplied is: Multiple Choice 20 percent 18 percent 0.6 6.0

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Answer: 20%

Explanation:

Using the midpoint formula, the denominator is an average of the beginning and ending figures;

= [tex]\frac{Q2 - Q1}{Q2 + Q1 /2 } * 100[/tex]

= [tex]\frac{110 - 90}{(110 + 90)/2} * 100[/tex]

= [tex]\frac{20}{100} * 100[/tex]

= 20%

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