Solution:
Methods of allocating support or service department cost to
production department include direct method, step-down method and
reciprocal method.
- Direct Method: The
direct method is the most widely-used method where it allocates
each service department’s total costs directly to the production
departments. Good Point: It ignores the fact that
service departments may also provide services to other service
departments. Bad Point: Under this method, there
is no interaction between service departments prior to
allocation.
- Step-Down Method: The
step-down method or known as sequential method allocates the costs
of some service departments to other service departments. However,
once a service department’s costs have been allocated, no
subsequent costs are allocated back to it. The choice of which
department to start with is very important. Good
Point: The sequence in which the service departments are
allocated usually effects the ultimate allocation of costs to the
production departments, in that some production departments gain
and some lose when the sequence is changed. Hence, production
department managers usually prefer over the sequence. Bad
Point :The most defensible sequence is to start with the
service department that provides the highest percentage of its
total services to other service departments, or the service
department with the highest costs, or the service department that
provides services to the most number of service departments, or
some similar criterion.
- Reciprocal Method: The
reciprocal method is the most accurate among the three methods for
allocating service department costs. Good Point :
It is the best method because it recognizes reciprocal services
among service departments. Bad Point: However, it
is also the most complicated method, because it requires solving a
set of simultaneous linear equations.