Answer:
Option b ($150,000 decrease) is the correct answer.
Step-by-step explanation:
Given:
Fixed manufacturing overhead,
= $65
Units,
= 10,000
According to the question,
Current cost is:
=

=
($)
The expected cost will be:
=

By substituting the values, we get
=

=

=

then,
=

=
($)
Thus the above is the right answer.