XYZ sells customized clothing. Currently, it sells 18,000 shirts at an average price of $89/ea. It's considering adding a lower-priced line of shirts that sell for $59/ea. XYZ estimates it can sell 7,000 of the lower-priced shirts but will sell 3,000 less of the higher-priced shirts by doing so. What is the amount of the sales that should be used when evaluating the addition of the lower-priced shirt?