13. Southern Manufacturing makes snow blowing Equipment for residential and professional use. The CEO has asked you to evaluate the performance of each product line. Data for the past year is as follows: Product Line Sales Operating Income Total Assets Residential $635,000 $64,000 $200,000 Professional $ 1,000,000 $160,000 $350,000 Requirements: 1. Calculate and compare each product line's ROI (2.5 points) 2. Calculate and compare each product line's sales margin (2.5 points)