Currently, Nine West sells 42,600 pairs of women's shoes annually at an average price of $149 each. It is considering adding a lower-priced line of women's shoes that sell for $79 each. The firm estimates it can sell 21,000 of the lower-priced shoes but expects to sell 7,200 less of the higher-priced shoes by doing so. What is the amount of the annual sales that should be used when evaluating the addition of the lower-priced women's shoes