From the list of items below please calculate the following information (a thru c): Sales Revenue Common Stock Average Total CurrentAssets Sales discounts Gross Profit Average Shares of outstanding common stock Net income Average Total Liabilities Net Sales Cost of goods sold Sales returns and allowances Average Total Assets $120,000 $50,000 $75,000 $20,000 $60,000 15,000 $45,000 $150,000 $90,000 $30,000 $10,000 $180,000 PLEASE SHOW DETAILS FOR PARTIAL CREDIT a.) Please calculate gross profit percentage also called the gross profit ratio: b.) Please calculate earnings per share: c. Please calculate return on assets