Edwards Company applies manufacturing overhead to jobs on the basis of machine hours used. Overhead costs are expected to total $1,800,000 for the year, and machine usage is estimated at 200,000 hours.

In January, $186,000 of overhead costs are incurred and 22,000 machine hours are used. For the remainder of the year, $1,940,000 of additional overhead costs are incurred and 214,000 additional machine hours are worked.

Compute the manufacturing overhead rate for the year.

a. Manufacturing overhead rate per machine hour

b. What is the amount of over- or underapplied overhead at January 31?

c. What is the amount of over- or underapplied overhead at December 31?