When Frank's income was $100 per week, 10 units of good A were demanded. Now his income is $150 per week and 12 units of good A are demanded. Using the percentage change formula, the income elasticity of demand for good A equals ___.
a. 0.40
b. 0.45
c. 2.20
d. 2.50
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Home » Business » When Frank's income was $100 per week, 10 units of good A were demanded. Now his income is $150 per week and 12 units of good A are demanded. Using the percentage change formula, the income elasticity of demand for good A equals ___. a. 0.40 b. 0.