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Suppose that a store decreases the price of laundry detergent from $4.3 to $3.6. As a result, quantity demanded increases from 190 to 260.

Using the **mid-point approach**, calculate the percentage change in price.

Hint

Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172

Enter DNE for Does Not Exist, oo for Infinity

Suppose that a store decreases the price of laundry detergent from $4.4 to $3.4. As a result, quantity demanded increases from 220 to 230.

Using the **mid-point approach**, calculate the percentage change in quantity demanded.

Hint

Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172

Enter DNE for Does Not Exist, oo for Infinity

Suppose that a store increases the price of laundry detergent from $3.4 to $4. As a result, quantity demanded decreases from 230 to 190.

Using the **mid-point elasticity approach**, calculate price elasticity of demand.

Your answer should be expressed in absolute value terms.

Hint

Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172

Enter DNE for Does Not Exist, oo for Infinity