*산술식Sales Amount (판매총액) = Sales Amount Based on List Price (정가총액) - Discount Amount (할인총액)Sales Margin Amount (마진총액) = Sales Amount (판매총액) - Sales Cost Amount (원가총액)Sales Price = Sales Amount / Sales QuantitySales Amount = Sales Price * Sales QuantitySales Amount Based on List Price = List Price * Sales QuantitySales Margin Amount = Sales Amount - Sales Cost Amount *음수 컬럼 확인Discount Amount(할인금액..