Q1 2018Q4 2017Q3 2017Q2 2017Q1 2017
Restaurant-level operating income (MM)$182.5$175.1$124.6$154.8$203.6
Restaurant-level operating income growth-10.4%15.4%-13.2%-6.8%-1.4%
Operating income (MM)$78.4$31.6$3.2$42.2$76.8
Operating income growth2.0%N/A-90.0%216.2%-11.4%
Net income (MM)$66.1$16.4$4.0$36.3$49.6
Net income growth33.2%N/A-80.9%N/A38.3%
Diluted EPS$0.68$0.16$0.05$0.35$0.46
Diluted EPS growth49.4%N/A-75.4%N/A60.1%

Notes:Restaurant-level operating income equals company-operated restaurant sales minus company-operated restaurant costs, which includes cost of goods sold (food, beverage and packaging), labor, occupancy and other operating costs