At $180, a firm can sell 18,100 stereo earphones (3.5 mm for android). These are premium earphones, guaranteed for 5 years. At this price, elasticity is estimated at 0.6. What is the change in total revenue ( or -) if the firm drops price by 11%

revenue falls by $167,005.08

Explanation:

Price elasticity of demand measures the responsiveness of quantity demanded to changes in price of the good.

Price elasticity of demand = percentage change in quantity demanded / percentage change in price  

When elasticity of demand is less than 1, demand is inelastic

Demand is inelastic if a small change in price has little or no effect on quantity demanded.

change in percentage demanded when price falls by 11% = 11% x 0.6 = 6.6%

Quantity demanded increases by 6.6%

Increase in quantity demanded = 18,100 x 1.066 = 19,294.60

decrease in price = 0.89 x $180 = $160.20

change in total revenue

(180 x 18,100 ) - ( $160 .20 x 19,294.60)

= 3,258,000 - 3,090,994.92

=167,005.08

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