77% 92.64% 87.05% 79.39% 79.83% 판매비와관리비 6,886 5,495 7,594 6,187 9,643 6,493 7,754 8,298 9,821 7,754 판매비와관리비 비율 15.81% 12.66% 14.91% 12.42% 15.18% 10.48% 16.93% 18.93% 18.73% 15.09% 영업이익 -1,785 115 2,029 976 2,298 2,941 -4,385 -2,620 986 2,610 영업이익률 -4.10% 0.26% ...