Landen Corporation uses a job$-$order costing system. At the beginning of the year, the company made the following estimates:

page $96$

Direct labor$-$hours required to support estimated production

$140,000$

Machine$-$hours required to support estimated production

$70,000$

Fixed manufacturing overhead cost

$$784,000$

Variable manufacturing overhead cost per direct labor$-$hour

$$2\mathrm{.}00$

Variable manufacturing overhead cost per machine$-$hour

$$4\mathrm{.}00$

During the year, Job $550$ was started and completed. The following information is available with respect to this job:

Direct materials

$$175$

Direct labor cost

$$225$

Direct labor$-$hours

$15$

Machine$-$hours

$5$

Required:

Assume that Landen has historically used a plantwide predetermined overhead rate with direct labor$-$hours as the allocation base. Under this approach:

Compute the plantwide predetermined overhead rate.

Compute the total manufacturing cost of Job $550.$