7. Operating data for Poll Corporation are presented below. 2016 $700,000 0ca.era 0095 000 SS 2017 $900,000 570,000 140,000 80,000 33,000 Net sales Cost of goods sold Selling expenses Administrative expenses Income tax expense 450,000 90,000 60,000 30,000 180919 (61 Net income 77,000 70,000 Instructions: (a) Prepare a schedule showing a vertical analysis for 2017 and 2016 (b) What is the primary use of vertical analysis? (c) What does the schedule from part (a) tell you about Poll