Daniel owns a coffee kiosk. all of his employees work 8 hours per day. in 2011, he employed 6 people who produced a total of 912 cups of coffee each day. in 2012, he hired a seventh employee and production increased to 1008 cups of coffee each day. in daniel's kiosk, productivity a. increased by about 10.5 percent b. decreased by about 5.6 percent c. increased by 9.5 percent d. decreased by about 5.3 percent