先进先出: 永续盘存 本期销售成本=800*3%2B700*3%2B500*3.2%2B600*3.2=8020 销售收入=8000%2B13200%2B7200=28400 销售毛利=28400-8020=20380 期末库存成本=4500%2B1200*3.21%2B700*3.2%2B800*3.5-8020=5430 实地盘存下 库存成本=800*3.5%2B700*3.3%2B80*3.2=5366 销售成本=4500%2B1200*3.2%2B700*3.3%2B800*3.5-5366=8084 销售收入=8000%2B13200%2B7200=28400 销售毛利=28400-8084=20316