anyone able to help with these questions? I did the problems, i think got the first one right bu having a tough time understanding how to do the rest

018 and 2017 Homework 2 The San Pedro Products, Inc. 2018 and 2017 comparative income statement is below. In addition selected information from 2016 is also given just below the comparative income statement (because you will need some of it). San Antonio Products, Inc. Comparative Income Statement For the Years Ended December 31, 2018 and 2017 2018 2017 2014 Net Sales 187,000 161,000 Cost of Goods Sold 93,500 90,000 Selling and General Expenses 47,500 41,000 Interest Expense 12,000 12,500 Income Tax Expense 11.000 8,500 Net Income 23,000 2.000 Additional Information: Total Assets 209,000 184,000 180,000 Common Stockholders' Equity 95,000 83,500 78,000 Common Stock Dividends 14,000 10,000 Preferred Stock Dividends 3,500 3,500 Common Stock Shares Outstanding During Year 30,000 30,000 10,000 Requirements: (round calculations) 1. Calculate the profit margin ratio for 2018 and 2017 What is the formula? 2018_12.3% work area: 23,000/ 187,000 2017_8- work area: 2. Calculate the rate of return on total assets for 2018 and 2017. What is the formula? 2018 work arca: __(need 2016 info) 2017 11.8% work area: (9,000 + 12,500)/(180,000 +184,000)/2 3. Calculate the rate of return on common stockholders' equity for 2018 and 2017. What is the formula? 2018_21.8% work area: 2017_9. - work arca: (need 2016 info) 4. Calculate the carnings per share for 2018 and 2017. What is the formula? (65 cents) 2018_ 65 work area: (23,000 -3,500)/30,000 ( 2017 10. - work area: (need 2016 # shares for ave. so take 2016 # of shares + 2017 # of shares, then divide by 2)