If the department does not even know what the acquisition cost are, how can the department decline to accept downstream sales on the grounds that they are made below their acquisition cost ?

• 如果该部门连购买成本是多少都无法得知，该部门怎么能以这种销售额被搞得低于它们的购买成本为由而拒绝接受较低的销售额呢?