MacMan, Inc. reported the following data: 2019 2018 Amount Percentage Revenues $ 6 comma 380 $ 4 comma 990 $ 1 comma 390 27.86% Cost of goods sold 3 comma 390 2 comma 200 1 comma 190 54.09% Gross profit 2 comma 990 2 comma 790 200 7.17% Operating expenses: Sales and marketing expense 730 650 80 12.31% General and administrative expenses 410 445 ( 35 ) ( 7.87 )% Research and development expense 490 420 70 16.67% Other expense 480 720 (240) (33.33)% Total operating expenses 2 comma 110 2 comma 235 (125) (5.59)% Income before income tax 880 555 325 58.56% Income tax expense 230 250 $( 20 ) ( 8 )% Net income (loss) $ 650 $ 305 $ 345 113.11% The horizontal analysis shows that cost of goods sold has ________. (Round your answer to two decimal places.) A. increased by 27.86% B. decreased by 27.86% C. decreased by 54.09% D. increased by 54.09%