銷貨淨額=銷貨收入-銷貨退回及銷貨折讓 =640000-40000 =600000銷貨成本=銷貨淨額*(1-毛利率) =600000*(1-30%)
=420000進貨淨額=進貨+進貨運費-進貨退出及折讓 =450000+30000-20000 =460000期初存貨+本期進貨-期末存貨=銷貨成本300000+460000-期末存貨=420000期貨存貨(8/1)=340000