Using vertical analysis for 2016, compute the percentage for Income from operations. BLK Inc. Income statement year ended December 31 2018 2017 2016 Sales $94,025 $69,579 $52,654 Cost of goods sold $67,690 $50,091 $37,906 Gross profit $26,335 $19,488 $14,748 Operating expenses $20,020 $14,815 $11,211 Income from $6,315 $4,673 $3,536 $1,198 $886 $671 operations Interest expense Income before income tax Income tax expense Net income 3.57% $5,118 $3,787 $2,866 $1,645 $1,217 $921 $3,473 $2,570 $1,945