In an effort to boost sales, McDonald's (NYSE: MCD) will be changing the face of its iconic hamburgers in order to more widely appeal to customers' tastes. According to Business Insider, the iconic fast food chain has seen declines in sales for the past six consecutive orders. According to McDonald's representatives, the company will now be toasting the hamburger buns for 15 more seconds, achieving a warmer and slightly crispier texture which employees are hoping will improve customer experience. The chain will also be supplying a larger quarter-pound burger, weighing in at 4.25 ounces when raw, Business Insider reported. For more business and financial news, click here.