Key TakeawaysDillard's missed second-quarter earnings and revenue estimates as sales slowed and costs rose.The department store chain said the rise in costs was driven by higher payroll expenses.Shares of Dillard's tumbled Thursday following the company's earnings release. Dillard's (DDS) shares sank over 10% Thursday after the department store chain reported second-quarter results that missed analysts' estimates as inflation-weary consumers cut back on discretionary spending and the company's costs rose. D ...