3,870 2018 Amount $4,940 $1,420 2,400 970 2,540 450 3.40 30 Percentage 28.74% 40.42% 17.72% 40.42% MacMan, Inc. reported the following data: 2019 Revenues $6,360 Cost of goods sold 3,370 Gross profit 2,990 Operating expenses: Sales and marketing expense 730 General and administrative expenses 410 Research and development expense 500 Other expense 490 Total operating expenses 2,130 580 150 25.86.00% 430 (20) (4.65)% 460 710 2,180 40 (220) (50) 8.7% (30.99)% (2.29)% 730 580 150 25.86.00% 410 430 (20) (4.65)% Operating expenses: Sales and marketing expense General and administrative expenses Research and development expense Other expense Total operating expenses Income before income tax Income tax expense Net income (loss) 40 500 490 2,130 860 250 $610 460 710 2,180 360 270 $90 (220) (50) 500 $(20) $520 8.7% (30.99)% (2.29)% 138.89% (7.41)% 577.78% The horizontal analysis shows that cost of goods sold has - (Round your answer to two decimal places.) O A. decreased by 28.74% OB. increased by 28.74% O C. increased by 40.42% O D. decreased by 40.42%