The following income statement information is available: 2018 2017 Net Sales $ 840,000 $700,000 Cost of Goods Sold 400,000 325,000 Gross Profit 440,000 375,000 Total Operating Expenses 140,000 105,000 Net Income $300,000 270,000 Calculate the percentage increase in net sales from 2017 to 2018. cannot be calculated 16.7% 11.1% 20%