a680ffa6_ts__a_key_concept_in_Economics__Cost_item
[Cost category] Variable (proportionally) plus a fixed component [Justification] Sale representatives usually are paid in percentage to success plus a fixed fee. Sometimes supermarkets would require a "listing fee" to be admitted on the shelves and require a rebate at the end of the year, based on the amount of sales done. [Cost item] 
Distribution cost
Costs: a key concept in Economics
Cost item