Answer:
both existing customers who now get lower prices on the gowns they were already planning to purchase and new customers who enter the market because of the lower prices.
Explanation:
Consumer surplus is the difference between the willingness to pay of a consumer and the price of the good.
Consumer surplus = willingness to pay – price of the good
Let assume that the price before the sale and after the sale is $1000 and $800. The willingness to pay of customer A is $1500 and for customer b is $900
consumer surplus of customer A before sale = 1500 - 1000 = 500
consumer surplus of customer A after sale = 1500 - 800 = 700
consumer surplus of customer B before sale = 0
consumer surplus of customer B after sale = 900 - 800 = 100
consumer surplus of both customers increase