Trend Percentages Net sales, net income, and total asset figures for Vibrant Controls, Inc. .for five consecutive years are given below (Vibrant manufactures pollution controls Annual Amounts (Thousands of Dollars) Year 1 Year 2 Year 3 Year 4 Year 5 Net sales $71,500 $79,800 $35,275 $88.400 $94,700 Net income3,200 3650 3,900 4250 4,790 Total assets 42,500 46,200 48,700 51,000 54,900 Required a. Calculate trend percentages, using Year 1 as the base year b. Calculate the return on sales for each year. a. Round answers to one decimal point. Trend Percentages Year 1 Year 2 Year 3 Year 4 Year 5 Net sales Net income Total assets