Shares of Denny's Corp. /zigman2/quotes/206956394/composite DENN -7.82% fell 7.4% in Monday premarket trading after the diner chain said first-quarter same-store sales fell 6.3%. Same-store sales each week for the month of April fell between 72% (week ending April 22) and 79% (week ending April 1). As of May 1, nearly three-quarters of Denny's locations (74%) were operating as largely or entirely for takeout and delivery. Denny's restaurants are a mix of company-owned and franchised. The company has put franchisee relief measures in place, including deferment of royalty and advertising fees. The company has also taken a number of cost-saving steps, including reduced staffing at its restaurants and pay cuts for the board, executives and management. As of May 1, Denny's had $51.1 million of cash and equivalents. The company has $43.6 million left from its $338 million revolving credit facility. Denny's is scheduled to report first-quarter earnings on May 14. Denny's stock has dropped 42.6% over the last year while the S&P 500 index /zigman2/quotes/210599714/realtime SPX -2.59% is down 3.9% for the period.