Assume figures were presented for the past 5 years on merchandise sold at Chicago department and discount stores ($ million). Sales in 2016 were $3,154; in 2015, $3,414; in in 2014, $3,208; in 2013, $3,152; and in 2012, $3,216. Using 2012 as the base year, complete a trend analysis. Round each precent to the nearest whole percent.