wastage

noun
1
the fact of losing or destroying something, especially because it has been used or dealt with carelessly
اتلاف, ضایعات, هدر رفت
2
the amount of something that is wasted
ضایعات, هدررفت, اتلاف, پرت
There is little wastage from a lean cut of meat.
Always allow for some wastage when ordering building materials.
3
the loss of employees because they stop working or move to other jobs; the number of students who do not finish a particular course of study
ترک خدمت, رها کردن تحصیل
Half of the posts will be lost through natural wastage.
student wastage rates
Natural wastage will cut staff numbers to the required level.