Comart, a retailer of consumer goods, provides the following information on two of its departments (each considered an investment center). Average Investment Center Electronics Sporting goods Sales Income Invested S 11,300,000 S 739,500 $4,350,000 7,800,000 1,040,000 5,200,000 (1.1) Compute return on investment for each department (Do not round your intermediate calculations and round your final answers to the nearest whole percentages. Omit the "%" sign in your response.) Return on Investment Electronics Sporting goods (1 2) Using return on investment, which department is most efficlent at using assets to generate returns for the company? O Electronics Sporting goods